To start with i'm 16 years old,I've been with my bisexual girlfriend for 3 months now,in the past she's been with a girl (when she was 14 years old relationship lasted 3 months) and 6 boys up to this current day,she has not been with a girl since her ex sadly commited,when i question her about her sexuality she says 'i can't see myself getting with another girl if we were to finish,but there again i might do?',she then tells me i shouldn't worry about the bi situation as she's confused herself,is this just a phase as she is currently only 16 years old.She has had intercourse with her first girlfriend and has come close to engaging in intercourse with ex-boyfriends on 3 different occasions even though she has done sexual stuff with them as well.All help will appreciate:)