I've been in love with a girl for over a year now, when I was in love with her, we were together all the time, and everything went the right way. but after a while we lost contact. I tried to get in touch back, but it did not succeed. After many months, I ended up being best friends with her brother, who always gets mad when I talk about her, or hints that I like her. Then suddenly, after about eight months without talking together anymore, I meet her at the party. at the party, she is very happy to see me, and I her. we are making out at the party and there are a lot of fun together, and then she contacted me many times, and wants us to be on a date together. The problem now is that I am my best friend her big brother and does not want to lose him as a friend. but i love this girl, what should I do?