I'm going to be a judgmental ass right now, but I couldn't help reading between the lines so here I go:
Does this man have anything to say all by himself? Judging from what you DON'T say, as opposed to what you DID choose to say, *I* would have to say that your boyfriend needs to grow a backbone and participate mentally as an adult in this, and stop putting you and the other lady in the awkward position of competing for his attention. I will go out on a limb and suggest that he enjoys this on some levels.
That's enough non-sugar-coated commentary from me for now.