Quote: H says I'm invited. His parents have not said anything to me, the invite was relayed through him. It would be horrible and awkward, but would it send a good message to H?
Go. Don't make any deal out of them not calling you directly - they spoke to him, that should be enough. Get that giant chip off of your shoulder where your ILs are concerned. Pretend they are casual acquaintances you just met at a party and be polite to them. Let anything else roll off your back. The only thing anybody is obligated to in IL relationships is politeness. Don't make any ASSumptions about what they do or don't think about you. DB the heck out of them! Prove your H's belief that you can't get along with his parents is WRONG! Remember, even if they are jerks, they are HIS family and your role is simply to facilitate him having a smooth R with them - which means Just Be Polite. Okay?