Complaints are fine because they can be constructive, but criticism attacks a person and not their behaviour. Just because she has her constrains on not going to a trip with him, he said she is taking it for granted.
In forms of name calling, eye rolling, sneering , mockery and hostile humour is poisonous to a relationship because it conveys disgust.
Defensiveness is saying, " The problem isn't me, its you." It's the most effective way of blaming your partner and it almost always escalates the conflict
When you tune out a person, you don't just remove the conflict, you remove them emotionally from the relationship. And since you obviously cant have a relationship alone, it's safe to say you won't be in a relationship for long if you keep stonewalling him