I'm going to tell my boyfriend that his relationship with his mommy and me is frigging weird.
Tell me what's going on. How are your boyfriend's relationships with his mother and you weird?
Don't you get it? How would it not be weird to get involved with someone like his mother?
I understand you're frustrated because I don't understand what's weird about your boyfriend's relationships, but I have no knowledge about you three. I've only seen you guys interacting together on a very few occasions.
Moving on...
I was just trying to understand the situation better. I really don't know you guys well enough to have formed an opinion. If you're uncomfortable pursuing the subject any further, we don't have to.