TTC, I'm so sorry about all you are having to deal with all at once.
When my MIL got her first cancer diagnosis DH was kind of mean to me too. I just don't think he knew how to deal with it. You know, men just like to fix things and he couldn't. I tried not to be hurt and let him work through his feelings as he needed. Though it's not easy being treated that way. Especially when you are having your feelings to deal with. But maybe it's more of a frustration with himself that he can't make everything better for you. And unfortunately we are sometimes the easy target to release on. I hope it gets better. Hugs!