Not to make light of your situation but have only basic suggestions.
Since he doesn't want to be contacted & you don't want to go to jail, only solution is to steer clear of him. Write him letters but don't send them, may help you wean yourself from his companionship. Has your husband or daughter stated an opinion on this "friendship/attachment" you have to this young man or is he a teenager?

Don't give up on your husband, read some info to him if he doesn't like to read. Since you intend on starting therapy yourself, couples therapy seems to be needed as well. Sounds like the move across country will be a good thing. You can make new friends more your age & not obsess about this fellow.

Don't know if this helped any but best wishes with your move.
Take care.