My guess is he can't Tow something just because he feels like it. This would be putting you friend into legal risk.
He could just keep an eye on the house. I still reccomend having a friend stay there when you move in.
AS far as OM and his promises. I wouldn't believe him.
1. He's been lying to you for weeks indirectly. 2. He has the nerve to crawl into your bed with your wife. 3. You call the police twice on him and he STILL pursues her. 4. You tell him outright he's harming your family and the best he can offer you is "I'll think about it"
Dude, I just don't have a strong opinion of him, so I wouldn't trust anything he has to say at the moment. He can tell you he's the bad guy, but remember : this is the guy that talked your wife into violating her marriage vows and betraying your trust, he's a charmer.