Confused about a friend, could use advice.?

Hi I’m 19, female and right now coming to terms with the possibility of being bi but I’m not sure.

But that’s not the biggest problem I have. Of course there’s a friend (also female) of mine I might have more feelings for than I should. I have known her for almost 7 years and she’s one of my best friends (I’m the same for her). And if I look back I probably had those feelings for some years but I’m not sure if they were already this way when I was younger.

She’s 18 and she admitted to be bi but she has a boyfriend (near 3 years) whom she truly loves. He’s a great and cool guy and I’m really happy for her. And I’m not really jealous when they are together because I know I can’t compete but if she’s with other female friend of ours I can get really jealous and wishing she would just focus on me because she’s just a great person whom I find very attractive.

Often when I’m have her I just wish she would pull me close and just kiss me. When we go out together, dancing and getting drunk I’m just a few steps away from walking up to her and kissing. But I haven’t and probably never will because I don’t want ruin all this. She’s also a very touchy and outgoing person which doesn’t make it easier.

At her 18th birthday we were both drunk she walked up to me close and she said “oh if I hadn’t have my boyfriend” and than she looked at me this flirty way (u know). And since than my feelings seem to grow but I don’t know if I love her or if I have a crush on here. I know that I truly love her as a friend and it could be a possibility of me being all this because she is one of people who have treated me in the nicest way ever. She just great friend and I don’t want to ruin this friendship. I have been trying to kill those feelings with everything I have but it doesn’t really work.

I just had to write it down because I kept it to myself all the way. Thank you for reading it and please tell me what do you think.