So much drama Ami. Like it's not hard enough to raise a child on your own without crazy self-centered people trying to manipulate you into feeling bad.
When I feel overwhelmed (and I do often) I repeat the serenity prayer to myself and I remind myself that nothing stays the same. Hang in there. This too shall pass. Have faith. As long as YOU do the best you can for yourself and your daughter, everything will work out in the long run.
You are doing a great job. Hang in there. Remember that his problems are not your problems. It's his bed. He can lay in it. Stay in the now. The future can change in an instant.
(((hugs)))