My girlfriend doesn't talk when I quarrel with her.

Hello, the question you should think about is not how to break the silence, but why your girlfriend wants you to talk to her after the quarrel. Why don't you have this idea? If you want to talk about it, the problem won't arise.

In fact, this is caused by the difference in thinking between men and women. Women tend to talk, they will take talking as an expression of their feelings, while men tend to be silent, because men think talking is solving things. So after the quarrel, you will feel tired and want to have a quiet rest, while your girlfriend will have emotional communication and be eager to know whether your feelings are the same, which shows that she cares about you very much.

So, if you quarrel next time, then after the quarrel, you can tell her your feelings, such as sadness, sadness, joy and so on. Or, say nothing, hug her and say you love her.

If you want to do better, read some books about the differences between men and women, which will be very helpful to you. For example, women are from Venus and men are from Mars.