Love
Michael had broke up with his ex girlfriend just 3 months before meeting and dating you, but she was still texting him and once you even caught her calling, they were really close and had a good relationship so you were trying not to be bothered by too much, but you started to compare yourself to her and felt insecure in your relationship thinking you couldn't be as good as her for the way he still had contact with her, you felt sad and miserable. When he finally noticed something were wrong with you, you tell him the truth about what you were feeling and when you ask him to no talk to her anymore, he hesitate, that's when you have a breakdown and cry. You get out of his apartment in the middle of the night and go home. You ignore his calls, he traveled the next day but even when he was back weeks later and went to your place you don't open the door, until he finally caught you outside of your workplace.