Good day everyone, matured mind alone please

We have been in relationship for almost 2years now, whenever she is wrong and I got angry with her, she will also get angry and stop talking to me until I beg and pet her before she will even say a word.

What baffles me most is that she will never apologize for her wrong at all until I sit her down and almost start preaching the gospel before she will ever understand that she was wrong

I’m tired of all this and I love her so much..

Please what do I do to change this habit

Good day