"I don't want to avoid her forever." She was his wife. He just wanted to make her happy ... and destroy the robot that had upset the equilibrium of their life.
Hank had always wanted to contain Ultron before, but now he wanted it in pieces. He was a man who was ready to go off on a mission.
"I'll ask her - if maybe she wants - or I'll suggest to her, that maybe some time with her female friends would be nice." And meanwhile Hank would get a robot hunting.