I think his avoidance of filing for divorce is also a ploy to look like the good guy. If YOU file then HE can cry victim and play pity party to anyone who will listen

"She's divorcing me.. I am so hurt.. we have a son.. blah blah blah".. Its all sociopathy talking... He's narcissistic likely as well.

He wont' file because he doesn't want to be the bad guy. Mb28 is in a similar situation, but her H is claiming that filing will HELP his WIFE.. its the same deluded fantasy.. they both don't want to look BAD.... so they avoid filing and wait for you to push the button so THEY can point the finger at YOU for giving up on THEM.