u/need_help613

I’ve been with my boyfriend for 6 years , we have 2 babies together and he’s an addict and aggressive crack user . He’s been gone for 6 days on a binge spending over 2000$ . I gave him the ultimatum yesterday to get help or don’t come home , he didn’t go . He messaged me saying if I don’t let him come home now and he say he stop drugs on his own then he’s going to leave me and run away . I didn’t allow him unless he got help and now he’s blocked me . Why do I feel like this is my fault . He’s been actively using for 3 years saying he will stop and it’s always very short lived . Am I in the wrong ?