Am I in a healthy relationship?

I am a freshman in college. My boyfriend and I are high school sweethearts and we've been together for nearly a year and a half. We have never gotten into an argument. I define an argument as yelling at each other in person or over the phone, it includes name calling and being disrespectful. Even when we disagree on things we usually talk it out and reason with each other. We don't control each other. We trust each other. I can hang out with my guy friends and he can hang out with his girl friends without either of us being incredibly, ridiculously jealous...just what is normal. Which is good. I love this guy and would marry him in a heartbeat.But like I said, am I in a healthy relationship? How do I know that we don't argue because we would just rather not talk about things? How do I know what we're not beating around the bush? How do I know that the reason we seem to be getting along wonderfully is genuine and that our relationship isn't a complete farse?I love this guy......and I want to make sure that I'm not wasting his time. If the relationship is not healthy for some reason I want to be able to work on it.I guess I'm just paranoid that maybe something is wrong and I don't notice it. I have a lot of friends who are completely oblivious to things going on in their relationships. Things that could have been taken care of early on. I don't want to be like them. I want to make sure that things are going well as we go along, not mess up and not realize it. Does this make sense?Anyways, please let me know. Thanks.a note on what people have been saying...haha...we are not sleeping together, so it's not friends with benefits, and we go to school about 20 minutes apart, so we see each other and have our space. and yes he does do nice things for me...all the time!!! this guy would bend over backwards if i asked. :-)i guess i've answered my own question...but i'd still like to know what you all think, so keep the answers coming.and no...none of my friends have pointed out anything bad about the relationship :-)and i don't plan on marrying him any time soon...i'm way to young, but i'm not going anywhere! haha...if we do get married it won't be for another 4 or 5 years...

i think that the last line you wrote answers your question