It's not about him.. it's about you and your daughter at this point. You have no control over your spouse's or in-law's actions. You can make choices.. lots and lots of good ones.
Being on medication at this time is a very good move. You need to be in a good place to make good decisions. It's much easier to by wrapped up in the emotional devastation (you're looking at the poster child here) that to take a good look at where you are, what your reality is and what you need to do to take care of your child.
It hurts, it sucks, it's devastating. But I always figured it was better than being in New Orleans with Katrina and its lingering aftermath. You cannot control his relationship with his daughter or stop his downward spiral.. but you can be the best mommy and love her, listen, comfort and not speak bad about the Dad.
Deep breaths, my friend.. lots and lots of them. Remember.. stay in the good place to make good decisions.. lots of oxygen to your brain, taking care of you and your angel and not giving him prime real estate in your brain.
