I don't know where else to turn. I feel like my opinion isn't even heard anymore, and I am becoming more and more resentful by the minute.

Over the last few weeks, I have called SD out on her lies, her manipulations, her game playing. Before, he would have my back and deal with it. Recently, instead of backing me, DH gives another way to interpret whatever it was she was talking about. Instead of showing that he supports me, he backs her. EVERY.SINGLE.TIME.

For example, I tell her not to do something (DH is right there). She does it anyway, with DH watching. I said "Did you not hear me say XXX?"
"Yeah"
"And you did it anyway?"
"Yeah"
"DH, are you hearing/seeing this?"
"Well, with what you said, she could have thought XXX."

Really, DH?

Yesterday, DH asked me if I can watch his kids after school. I ask if he's going to be available to help with issues. He said yes. Issues developed. I call, no answer. I text, no answer. Call again, no answer. I text again, and tell him he needs to deal with his child. Finally, he texts back, "well, I guess I will have to give up X to deal with Skid." I responded, "screw you" Again, this is my fault because his child won't listen and respect boundaries. I'm out to get his child, I'm hating on his child.

So, at this point, I'm done. I'm done doing laundry. I'm done cooking. I'm done cleaning. I'm done checking homework. I'm done making sure rooms are cleaned up. I'm done with bed time routines. I am F****** done!