<human>: Summarize the given text in a few sentences.

My boyfriend and I have been together for about four months, and it seems to be going great.  He is fantastic, I love being around him, the sex is great, and he treats me better than I've ever been treated.

When we first met, we both agreed that we didn't want a relationship, as I was very much enjoying the single life, and he had just been dumped by his girlfriend (about a month prior).  We very quickly fell for each other though, and he asked me to be his girlfriend (so cute....I know).

Recently, talks of his ex are emerging.  He still totally loves his ex's mom and her sister, and has recently been speaking to them again.  The other night, he met with his ex's mom for a visit, and she told him that his ex was having a hard time emotionally lately because "she isn't sure she made the right decision" in dumping him.  

This is very much making me want to shy away from the situation.  I want nothing to do with ex drama, and I'm absolutely not fighting with another woman over a man.  I just don't do that.  When asked, he claims to be 100% over her, but I notice behavior that would indicate otherwise.  Behavior such as snide comments about her, or snide comments about things he's seen on her Facebook etc.  He mentions her name quite a bit I've noticed. He loves her family, and they love him, and even his family loves her and her family, therefore, given the situation I feel like it's only a matter of time before there is a love triangle forming between he and his ex, and myself.  

I feel like it may be in my best interest to break things off now before we're too overly involved or committed to each other.  I don't want to stand in the way of the two of them reconciling and fixing things that were wrong with their relationship and being happy once again.  It would hurt, but I really don't want to be in the middle.  Am I overreacting and being too rash?
<bot>: Suspect my boyfriend still has feelings for his ex, and that she will soon try to get him back - considering breaking up with him so I don't get involved in the drama.