Love or Money

I currently live in the home with my ex-husband and our two boys due to some economic issues. My ex and I have talked about making it work but its just not happening. I'm not attractd to him anymore and there's just too much bad history but he seems to keep trying to "buy" me back. A little over a month ago I secretly started dating and I can really see myself with this guy. However, my children have never known me to be with anyone other than their father and he is the primary bread winner in the household. I've gotten used to living a very comfortable lifestyle and I know that the other guy can't provide me with that. I'm torn because on one hand I care about my ex-husbands feelings and I like the lifestyle that he provides and on the other I think that I'm in love with this other guy. ADVICE PLEASE!