Should I have said yes to my ex's friend?

I like two guys.
I have been going out with one of them for 6 months.(Brian)
& I was being stupid and cheated on him with the other guy.(Frankie)
so some of Brian's friends found out about Frankie and they made it into a bigger problem by lying to him so that he would break up with me.
and he did last Wednesday..
I mean just because I liked two guys doesn't mean I like one of them any less.
Well anyway.
Frankie asked me out Thursday.
and I said yes.
but I don't know if I should have said that.
especially because Brian and Frankie are friends.
and I think Brian will get mad if he finds out bout me and Frankie.
my friends say whatever makes me happy.
but I'm not sure that I did the right thing by saying yes.

your slut.......

Since they are firends you may tell them that they should not be jelous of each other. That is not a terrible think to share a nice girl like you are..And if Brian is touchy it is his problem.

Seriously, you shouldn't go out with either one of them. If you like both of them then you already know that neither of the two are for you. When you do find the one you will love him/her and only them. To add to this their friends and do you really vreak their friendship?