<human>: Provide a brief overview of the text.

f/m, early/mid 20s, together over 1yr.

A few months into it, he became emotionally involved with a 'lady friend' of his. I called them out, they allegedly stopped, and I stayed with him. Even though they still keep contact. Even though she continued/s trying to initiate things, and trying to get his attention. Even though she talks shit about me to my friends (though I've been nothing but nice even after she fucked everything up). 

Obviously I would prefer him breaking off all contact, but since he's been friends with her since before we started dating, he thinks it would be 'weird' to break off *all* contact with her.

I don't trust her, and I don't trust that my bf wont cave in to her advances (or hasn't already). I worry about the kind of interactions they have privately. I can't have one thought about him without thinking about that drama attached. Basically, this anxiety is killing me 24/7.

I'm scared to introduce him to my family, and I'm hesitant to visit (we've been long-distance for a couple of months). In my view, and my family's culture, these things are taken seriously. I want to be assured that he's worth the commitment, but I don't know how to go about it.

Unfortunately I suck at having these "talks" and confrontation. I don't want to bitch or make him feel bad, I just want him to know that this is eating away at our relationship, or at least at me.
<bot>: BF's continuing contact with 'lady friend' is keeping me from getting over their past, and making me hesitant to move forward with our relationship. How do I communicate this to him?