<human>: I dated this girl for a year before I moved to Texas. We stayed really close friends, and there was always talk of us picking up our relationship when I moved back. After returning, I never officially patched up our relationship. The other day, I caught her cuddled up with and kissing my roommate. I didn't have any right to be upset with her actions, since we weren't together technically, but it made my heart stop and my stomach turn upside down. So we spoke about it, and decided to continue our relationship. Two days later, I found out that she made out with him again, and that she was the one who initiated it. We talked about it again, and everything seemed to be ok. But in the back of mind, I'm still worried that she can/will do it again. How do I proceed from here? Do I end things, or do I talk to her again, and give her the benefit of the doubt.

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<bot>: Girlfriend has made out with my roommate on two separate occasions, and I don't know if I can trust her anymore, at least not around him.