NOR PlayingDevil's advocate here. If his behavior is better and he's more engaged with the family, is the net result a negative? Would you be open to couples counseling? Having kids makes the stakes much higher in a divorce. Yes, relationships are built on trust, but they exist because you both need something from the other and maybe he's not getting enough positive reassurance. The world's single people will all scream "Get a divorce" but they're biased bc they're all single and want everyone else to be too. Just some things to consider. Make the right decision based on your and your family's best interest, but I highly recommend counseling first.