it may be obvious if you see her kissing on a boy, holding hands with him, and cuddling up with him. however, that might not always be the case. don't be afraid to ask her! if you're friends, just say do you have a boyfriend, OR are you taken (or replace taken with single). just be friendly. Alternative 2 is to go with the ol-fashion note! do you have a boyfriend? do you not? do you like me? :)
You should tell the other girl and both break up with your boyfriend.
ask her
I know am not a girl, but my boyfriend is my sex partner.
ummm askk her !
Ask your boyfriend. If you don't trust his answer he shouldn't be your boyfriend.
If the man has diabetes.
ask her or get somone to ask her
Does the girl know you like her? How long have you an and your boyfriend been together? And are you asking what should you do?
Well, if you are a girl whose boyfriend, who also has a boyfriend, you ask him is he is bisexual or gay. Whatever his answer, only you will know if you want to continue as his girlfriend, his friend, or if you want to move on.
Make a move to be her boyfriend trust me im a girl i would know.
The way to look at is if your boyfriend loves u he will belive u. That other girl is probably just trying to get with your boyfriend .
The most appropriate way is simply to ask her.