<human>: Could you distill the essence of the text into 1-3 sentences?

The guy I'm seeing is absolutely fantastic - smart, interesting, kind, generous -- all of it. However, he ended a six-year relationship in early May and chaos has followed ever since. To clarify, I met him on Tinder and the only expectation either of us had was to have a short fling (I recently ended a relationship too), but it developed into much more. We are crazy about each other and have been dating pretty seriously for the past 8 weeks.

What makes me most uncomfortable is his newly ended relationship. I have absolutely no contact with my ex; he tried to contact me and I told him not to call me again. My SO is different; his ex constantly calls him in tears and tries to manipulate him into coming over. She relies on him very much still and understandably hasn't gotten over their time together (and likely won't for a long time), which would be okay except it is intruding very much into my relationship with him. The breaking point for me was last night, when she happened to pass us in the car and ended up being physically violent towards him. She didn't know about me and he still has not told her we've been dating regularly. 

I should add that the two of us aren't exclusive yet. The reason we haven't progressed to exclusivity is because I want these issues resolved before starting a relationship. He assures me he's ready, but these encounters tell me it's way too soon. I feel like he won't be ready to date for at least a few months, and that I should just find someone else. I don't approve of the way he handles his ex, but don't feel the situation is as black and white as it seems. They have a long history and I know it'll take some time to figure out. To ask him to cut off all contact does not seem realistic or fair.
<bot>: I really like the guy but am completely put off by the drama of this newly-ended relationship. I don't want to leave him but I don't know what to do.