*I should add, I imagine some couples might have sex (when both want it and are comfortable with it) with a baby (sleeping) in a cot the same room ... if they choose to have the cot in their room or don't have enough rooms for a room for the baby.
But that's a baby in a cot, sleeping; and I imagine if the baby woke up, it would put a massive dampener on the sex, and it would probably be abandoned until they were asleep again.
That's not what he's done.
It diesbt matter if he's stopped (at the moment) that type of behaviour... some things say so much about something that it doesn't matter if they appear to have stopped; they're still not suitable relationship material.
You said he's a great Dad, but he previously kept pushing for sex and sex acts around them, eg with them playing nearby, so at best he didbt care if they guessed or saw something they shouldn't, and at worst; he got off on them.being nearby and not really knowing what you were doing, I suppose suppose thought it was sneaky and illicit abd exciting..... but ots pretty sick.
He had no right to subject his kids to that .... so he's not a good father. Doesbt matter if ges not doing that sort if thing at this time; he tried tk.do it before, several times.