4. Expecting her to give you a blow job
“I don’t like it when a guy assumes that every girl gives blow jobs.” Some girls don’t like to give blow jobs, and your girlfriend might feel hurt if you assume it’s a given and request one. If she refuses, don’t say things like, “My ex did it for me” or “I thought it was normal for girls to do it.” Try to make her feel at ease by apologizing and saying, “I’m sorry for asking. I respect your preferences.”