If I were in your shoes I would ask my SO to go to a counselor with me to work these things out. Sometimes it frustrates us so how the unskilled communicator acts that we cannot get the point across of how important such skills are in order for a relationship to survive. Personally, sarcasm to me is another word for rudeness often. It's hard for me to tolerate that when it is often belittling and leaves a person feeling worthless after awhile. I would probably draw the line and tell him to either get help with me or we have to forget this. You see, it's because I don't want to be hurt any more and cannot put up with that kind of treatment. He may not know how he sounds and probably learned his ways while he was growing up. Not to defend him but just to say that he has long standing habits that will take time and patience and a counselor to work on them. There is plenty of couples counseling available and in the yellow pages under marriage and family counseling usually or under counselors or psychologists. You may know someone who went through such counseling and has a recommendation for a counselor. Part of the reason for you to be there to is so that you can be heard by him with the help of a counselor. I think it's worth it if you think the relationship is serious enough and if you want to stay with him long term. If he refuses couples counseling, to me, that is an indication of non-committment to you. Then it is up to you what you want to do. Stay or suffer? But I hope he agrees to counseling and you live happily ever after! Good luck to you.