On cleaning up blood- he ought to be the one to do it, but probably won't, since he has decided it is your responsibility. So if you want to salvage the curtains, try hydrogen peroxide. I cleaned up insane amounts of blood when I was with my ex (he was an extremely accident-prone drunk). Hydrogen peroxide did the trick every time, just don't let the stain set.
Yeah, mine also used to take things the animals did really personally too. To the point where he would actually try to fight with them (like verbal arguments, with animals). Total crazymaking. Sorry you're here, but you're in the right place. Welcome.