I have to agree with lnkrid. I was in this exact situation 2 years ago, except that it was with my ex-wife. I had never wanted the divorce; she “needed to figure things out.” We got to the exact point you are at – she was going to dump the guy and we were going to buy a house together. She did dump the guy — and then a month later ended things with me and went back to him because “we had too much history.”

Giving her space may give her time to figure things out — right now, you are providing the emotional support she is not getting from the other guy. If you are distant, she may realize what she is missing.

Another thing that helped me – make a list of pros and cons for staying with her/not staying with her. This helped me figure out exactly what I wanted.