Why does my ex still want to talk everyday?

Hi, so I will try to make this quick. I was on birth control for a while and it made me crazy. I would always fight with my boyfriend over nothing and realized I was going to ruin the relationship. I stopped birth control and he continued to bring up old fights and eventually broke up with me. After breaking up, he still texts every single day. Never calls or asks to hang out. Also, he got mad when I mentioned I may hang out with another guy. Help please! I don't get it>
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Thank you so much for your advice!
Why does my ex still want to talk everyday?
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