You could also try a restraining order if you are that scared of him.
At this point, though, you do not know and you have good reason to suspect bad things.
It even happens when one parent is abusing the other but not abusing the children.
I have worked with countless mothers in similar situations.
And for all you know, there has been more.
He got caught because an observant cleaning person noticed that it was the wrong friend zone application, not one that they had ever used at that facililty, so picked it up to take a look at it.
See links above including a tweet from an actor on the show with a photo of a Lucy-signed S.
How true my feelings were I found out to be the best thing in my life was when you married me.
I have been married to my husband for over 20 years.