Do a bit of reading about codependence in relationships (just google it and you'll find plenty) and see if any of it "resonates" with you regarding this or past relationships. If you begin to recognize yourself, it's worth giving some thought to.
M60 H52 D20 M14 yrs OW-old gf from 1986 bomb-5/18/08 H filed for D-9/10/08 D final 4/24/09 xH remarried (not OW) 2012