No. If he brings up r talk, you can apologize for what is warranted and validate his feelings. Groveling and saying it's all your fault won't make him want to be in the m. Telling him you will "work hard" on the m will not turn this ship around.
Let's look at this from a logical perspective. Do you really think telling your h that the demise of this marriage is all your fault and that you are willing to do anything to save it is going to make him not want to explore other women, hang out with 20 something's, and forgo tanning ? It's not. Do you think he will suddenly revert back to your "old" h? No. Work on the things you want to fix for you. This is HIS deal.
3 kids BD 12/15/13 (IDKIILY. ) Rope dropped Cirque du Soleil style D final 9-9-14 "Some people are born on 3rd base and go through life thinking they hit a triple." Barry Switzer