I know you had to step away from Si. I think I knew it was going to have to happen, from the first time you posted. Matt's posts made it all the more clear: Keeping Si around was never going to be an option.
I think you feel you have more freedom now, and more time and opportunity to get right in the midst of your family and there remain, no interruptions or competition.
They always equate poly with freedom. But sometimes "less is more."
Love means never having to say, "Put down that meat cleaver!"