Well after all marriage is all about....ME....ME....ME!!! Sheesh! Get real, man up & quit thinking with the wrong part of your anatomy dude.
Your wife has probably figured out that you are cheating on her, and has gone and found herself a hot young lover. Now she thinks the thought of spending all day in bed with you is disgusting and it makes her want to vomit, and wants to spend it with her hot young lover. Just get a divorce, so you can be with your "creamy" girlfriend, and she can be with her hot new young lover.