I think this way is better.. you'd have him to yourself..
why would he feel aloone when youre there for him... treat him well.. look after him..
Stay out of it. if you befriend her---you're on his poop list. if you are on his side-----then mother in law hates you. Shut up--move back and let them work it out---or not.
Not much you can do, just don't take a side or you'll be the one in ****.
Does it bother him?
Does she talk to you? Any idea what is up?
I think it would be ok to ask