im 13 and need love advice :(?

( i know u all say its impossible to know what love is at 13! but i really really feel that i really love this girl LIKE seriously its not even funny how much i love her!)So im in a really really bad situation right now!Me and Her met like 5months ago! and became really good friends! and then we hungout like 3times and really started to like eachother so we started dating and we hungout about 5times then 2weeks later i was been a stupid head and sent a message to my ex-gf about how much i love her and want to kiss her and stuff!! (OMG I REGRET SOOO MUCH!!!!) and then i was gunna hangout with my ex gf and then the girl i love dumped me! (stupid stupid me!) and now 2months later and she has had 2 boyfriends! and she really loved me and forgave me before she had her first boyfriend (About 1 month ago) but not once she dated him shes been completely a jerk to me and totally ignoring me!!! and i really try to get her back but she just treats me like crap!!!! ugh advice?I do try to talk to her! and i tell her to give me one more chance and if it doesnt work out ill leave you alone! She did tell me everything i did! But she doesnt tell me how i can fix it Ive tried my hardest to fix it ! we talked on the phone every day for like 3months! and now whenever i text her she doesnt text me back and just calls me annoying and then she wont even like talk to me! and then whenever i try to like someone else or someone lese likes me she calls them a whore and stuff its really gettign on my nerves we hungout about 2weeks ago but she showed no affection to me! and like ugh im soo confusedp.sShe says she hasnt thought about me since the first week of our breakup

OK and Ur 13 OK so i will no this Cu's i am to get need to move on like u have all of Ur life to feel like this and i no that is not good now but u will be happy in the end