I'm sorry if I implied anything other than my encouragement of you remaining as much in S's life as you're capable.
It is unusual for a mother to leave her kid(s) behind but not unheard of. Could be anything... MLC, guilt, depression, severely overwhelmed. IMO, it SHOULD be out of character for any father to do the same but that's clearly not your situation and that's great!
Fish are great pets. They really help lower blood pressure, too. Can't hurt.
