What should I do if there is a fierce contradiction between my girlfriend and my puppy?

You'd better put women first in front of dogs, because dogs can accompany you for 15 years at most, but women always need your attention.

Don't let a woman feel that your love is shared, or with a dog, it is absolutely intolerable.

You can be nice to dogs when women are away.

Or, there may not be too many contradictions, but your attitude makes a woman unhappy. Don't blame her. Just let her know that you don't like her behavior and make her feel guilty, not angry.

The simplest solution is to give the dog away or change the woman.