FIL is really nice. He's never done anything or said anything bad to me. He adores my two girls. Problem is, he gives off this "vibe" that makes me very uncomfortable. Just a little too nice, if that makes any sense? When DH and siblings were children, FIL used to be depressed/stressed and worked as a priest and used to hit them and shout at them... possibly bordering on emotional abuse, I don't know... he's completely changed now, and I'm not sure if he's trying to overcompensate with niceness. He comes to visit at least once a week, even though it's a 5-hour round trip on public transport. He's retired so he comes on weekdays, when DH is at work and it's just me and the girls at home. MIL doesn't usually come with him even though she only works part time. Is this strange?
I'm thinking of telling my DH that I don't want FIL spending time alone with the girls, and that in future he should come on weekends instead of weekdays. Would this be unreasonable?