You cannot make other people believe things.
If you don't know then you don't know her very well. Don't assume all girls cheat because they don't,
Yes. March up to him and demand to know... look right into his eyes and use that lie detector of yours.
With the hurt that comes with cheating you definitely do not want your girlfriend to cheat. If you are looking for a reason for her to upset you and you can leave her - just leave her.
just be faithful to him and treat him nicely and don't flirt or cheat on him let him know how much you care for him and always show him that you want him not someone else.
no if you do it will end bad for you
Cheat!
no
Yes with brooke.
no one knows
Yes she did.
apparently yes he did