Please help.

Huneycutt

so my brother in law stayed the weekend at my mother in laws (we live here) well this whole weekend he was saying things to me that made me very uncomfortable. To the point that I told my brother NOT to leave me alone with him. I obviously know I need to tell my husband. Here's the dilemma, my mother in law once said "no girl/guy better ever cause problems between my kids" and we live here with our 5 and 1 year olds. If I say something and my husband flips (more than likely he will) he's obviously not going to want his brother staying back here. And that's gonna cause an uproar with my mother in law. I just don't know what to do.