soulsurvivor98

I NEED SOME ADVICE!!!!!!

I have a bit of a situation here... I have an awesome roommate, I love her to death (she's a lesbian) and we get along amazingly. Now, she has a girlfriend who she's been seeing for a few months now, very hot girl, if I do say so myself. Anyway, the problem is that my roomie recently went on vacation and her girl has been hanging around the house while she is away. Now she has always given me funny looks here and there but I always blew them off...until the other night when we were hangin at my place and she actually made a move and kissed me! No, i did not respond and I did not sleep with her (although it did cross my mind) nor do I plan on sleeping with her. My problem is should I tell me roommate about it or just pretend it never happened? Like I said, I love my roomie and I would never lie to her but, at the same time, i would not want to be the cause of her breaking up with this girl who she really likes... So what do I do people? I need some advice so I can figure out what to do about this before my roomie returns from vacation next week...any suggestions?