My girlfriend always goes out!!??Just recently she kissed another guy :(..need advice?

we've been together for 7 yrs now. We've been living in a house that is ours for over a yr. She constantly goes out! I would say 3-5 times a week. And its mainly going to bars!! Now i dint mind bars but i only go once in a blue moon. I mean I'm 24 I'm over that bar stage. And shes 23. I get off more when i hang out with friends and play some cards and socialize,which we do all the time.
Now she has a guy friend whom she always goes to the bars with and dances with. Now Ive trusted her to have guy friends,but last weds niter she came out and revealed that she kissed him. She was very regretful about the whole situation telling me shes so sorry and that I'm so much better then him and she doesn't know why she did this. She swore up and down that she didn't do anything sexually! So i told her I'm willing to work this out since we've been together for so damn long and i love her very much!! But recently she seems to be acting strange, as if she doesn't want to work things out. And.....
so thurs and fri we were fine! We go out on sat nite to a buddies party that he was throwing and were getting along as if nothing happened!! Then at 1:30am im drunk shes drunk we walk into her car (thinking were going home) but nope she wants to go to this certain bar! (whom this guy who she kissed always hangs out) so i tell her NO lets go to a different bar!! She refuses saying that she wants to dance to good music! So i basically got out of the car and went home! So she ended up going with her "girl" friend. She comes home about an hr later and screams at me like its my fault!! So i just ignored her and went to bed! The next morning i apologized to her for screaming at her, but i didnt appreciate her going down there! And i told her i loved her, and she says YUP! im like thinking to myself..wtf kind of answer is this...so she goes to work and everything seemed ok after this episode! Then monday morning comes around...and i hear from my gfs brother that she had been lieing to me...
and he exposed to me that she had lost her virginity to one of her guy friends b4 she met me! U guys must be thinking.."well who cares it was b4 u" ya but she told me that shes only been with me and no1 else, that she lost her virginity to me! And the guy whom she supposedly had sex with is still around till this day!! So now im kinda skeptikal about the whole situation! So then she calls me on her break and i loose it and start screaming telling her what i heard. She hunged up and texted me that WERE SELLING THE HOUSE and shes done BLAH BLAH BLAH! So all day monday she just kept saying she doesnt want to be with me that i stress her out, and things arent going to change!! So that day i just stayed at a friends! Then tues we talk about things and she still has her mind made up! And i ask her..why arent u happy with me..she says im BORING,I dont give her guy friends a chance,stingy and i have an attitude...hmmmmmm
so i talk to her and tell her how much i care and whatever happened in the past is in the past!! And im willing to work this out!! She cries and then says...i need space...so i stayed at my moms for 2 days and she still called me and shit.and she texted me today saying "you should just stay at the house tonite"...so i dunno what to think!! I love this girl with alllll my heart and i really do want this to work!! What should i do??
anyone else???

She is not as serious about you, and you guys' relationship as you are. She is certainly not 100% commitment. I am wondering why she hasn't confided the complete truth in you through out all this time. When you are entirely in love with someone, you do not lie to each other. What happened before you, was before you, but when she lies about it DURING the time that you are together, the situation becomes current business. I have a good feeling that if she had no contact with her "first" she would of told you. The fact that she hasn't though, could very well have something to do with why you never knew.

I can tell you that I have made mistakes growing up. Im 21 now, and when I was about 18 or so I was in a relationship with a guy who treated me like a freaking queen, but just wasn't enough for me. I knew he loved me, and I loved him but I wasn't in love with him. There was this guy whom I knew was so wrong for me. I knew he was not relationship material and nothing to leave my current boyfriend over, but I liked the kid so damn bad. I ended up kissing him and felt so guilty that I hurt my boyfriends feelings. I didn't feel bad for what I did though. If I did feel bad for my action then I wouldn't of done it in the first place. Anyway, I told my boyfriend and he was willing to work through this with me. I began lying about times that I seen the kid after that. I didn't wanted to be able to do my thing, and figure things out on my own and not have to worry about my BS feelings. (I know that's so wrong, but I'm just being honest). It was only AFTER I was truly over him, or I thought I was anyway, that I came clean with my bf. I hid the things I did from him because I didn't want my bf not allowing me to see him, even though he had every right to tell me not to.

I ended up leaving my bf and went for the other guy. I was crazy about him, and we only lasted 2 years. In that time I came to the conclusion that I already knew from the beginning, that he wasn't right. I since then, apologized to by now ex bf and told him that what I did was so self centered and assholes. After years of being depressed and single, he found a new ff and a great relationship I've been supporting.

My advice through all this is that she is stretching out for new things. I think there is still someone going on with her ex bf, and something going on with some of these guy "friends." She is seeking attention from other guys, and that is why she wants to go to bars and dance. When I began getting the feeling that I wanted to experience new things I got very touchy. I snapped on my BS for stupid things that wasn't even true. I accused him of acting in such ways that really he wasn't. At the time however, I fully believed this. Later down the line did I realize this was just my minds way of finding a plausible excuse for venturing out.

Also, her knowing that you are willing to work through anything give her that slack. Be a bit more stern with her, and maybe she will really question herself before acting for now on.

I know you love her, but that is no reason to get treated like dirt. You guys have been together for a long time and may very well need a chance to take a breather. She is aching to break loose so let her, but not while remaining in a relationship. Let her know that if you guys go your ways for a bit, that it is mutual and that she will not be the only one meeting new people. This could be a nice reality check.