So, i have been with my gf for 4 years now, when we met i talked about my relationship with my ex *she was my ex i mean even when we met*. Now it's been 4 years and she mentions her every week. At first i used to reassure her and try to be open and nice about it, but now i can't stand it i just lose it whenever she mentions that topic I told her many times not to but she keeps mentioning it in indirect way. She is sweet and i love her, but i can't stand it anymore i just snap every time she mentions anything related to my life before her and start being an asshole, then she starts crying and i have to comfort her again. is this even solvable?