Hi, Ladyinblue!  If the relationship with this woman has already turned sour once, it probably won't be long and it will do the same thing again.  In the meantime, my advice to you is to just stop begging/asking him for anything.  It's a hard thing to do, but the only thing that has helped my relationship with my husband.  He is probably feeling a huge amount of pressure from the other woman, so you want to make yourself more attractive than her.  How?  Give him space.  Act as if you are going on with your life---start doing things for yourself.  Be attractive at all times when he is around--physically, emotionally, intellectually, and spiritually.  Show him that you care, but don't go overboard.  He will notice.  He may not say anything, but he will notice.  Don't be a doormat, but don't pressure him either.  That's my advice.  Not sure if it helps.  You may have to put some boundaries in place with him, too.