I called my mother in law "Nan", which is what the kids called her. I call my father in law what the kids call him too. I never felt comofrtable calling them mom or dad. So I wouldn't be insulted over not being called "mom" myself, just so long as whatever name used is said with respect.

As for not acknowledging my statements, I'd find it annoying, but if its consistent, I wouldn't worry about it. My own dad doesn't acknowledge what's said too often, so I guess I'm used to it. I'll tell you what's annoying is when you ask him a question and you don't get an answer until 5 minutes later! The question could be as simple as "Are you hungry?" and you wait and wait, til you give up and start doing something else, then the answer "nah, I ate sonething a little while ago" He is what he is!