I have to work hard not to fall out with my MIL. So far we've only had one row and that was when I had to calm down a situation where she'd upset my OH so much he was refusing to go near her and she actually told me that I was wrong to put my husband first ahead of her and should support her against him (I don't think so!)! That made me so angry! We live close enough to be able to pop in a few times a week - I really couldn't cope with stopping over!