Why do I feel the way I do

Firstly I have an attachment disorder and depression I met a guy over a dating app we met once he asked me out we slept together but now he’s blanking me won’t answer me calls or reply back to my messages but I feel like I’m craving for him in a way I was abused when I was younger my Dad did not give me love like a father should I was taken into care I’m confused by what I feel..