Can my ex just walk into my house?

Can my ex just walk into my house?

The short answer: no, your ex does not have the right to enter your home against your wishes. The longer answer: while he does not have a legal right to enter your home, it may be very awkward for the children to deny him access.

Can my ex leave my child with his wife?

The short answer is (generally): No. You and your Ex both have the right to form new relationships; unless there is a court order in place that expressly prohibits your Ex from exposing your children to any new romantic partners (which, frankly, is rare) then there may be little that you can do.