I let dh do most of the interacting with her. He does the drop off and pick up when DS goes over there. She likes that better cause then she gets to see both her "babies" lol.

The only other time I see her is for family events and there are lots of people around, so it all tends to stay nice and superficial.

My mil is nice, but she is a bit of a twit and is very one eyed when it comes to her sons, so I just keep my distance.