This is tough because people can hide things very well. Just as the same if he cheated with a girl you would look for signs of sexual activity, like in his underwear or excuses for being out or your best gauge may be your intuition. What do you feel. Just ask him, you do deserve to know for your health. You can't really know unless he tells you. Ask him if he loves you he'll be honest. But it doesn't really matter. If he's faithful your health is not in danger no matter what sexual orientation he is, and if he's cheating on you it doesn't matter if it's with a girl or a guy.
When an attractive couple (who you don't already know) walk into a room or bar, who does he look at first? Does he enjoy performing oral sex on you or does it repulse him?
There is only one way to tell: you have ask her.
No, she has a boyfriend
There are no signs. If you are bisexual, no one will know for certain unless you tell them.
I don't have a boyfriend.
well yes because you have feelings for both sexes i think that you should tell your boyfriend he will understand
You have to ask him.
Yes. On Craigslist
There is no question i met his boyfriend
yes, wyatt is bisexual... he is mostley into guys though... he has a boyfriend at the moment :D
'I'm bisexual'
hes bisexual
Ask her out.