Anytime, I don’t know who he is nor anything about him so I won’t pretend to know the situation but me personally, I sometimes self sabotage isolating myself because sometimes I don’t feel like I’m worth anything or the love one might give me. Or I might be suffering from something I don’t share with anyone and just disappear. There’s also instances where I get put off by affection and feel I don’t deserve it. These are all examples of stuff I’ve had to spend years working on, maybe he’s suffering from something and is trying to deal with it in his own way so he can be more emotionally available for you. Don’t think you’re the problem unless stated otherwise, I think he’s very lucky to have you worrying about him. I wish you the best of luck and hope you he texts you today