Your story is similiar to mine also. I love my boyfriend dearly, and we were living together. I asked my boyfriend to move out and broke off our relationship with the understanding it was only temporary until he got help for himself. But then two days later he overdosed. He almost died. Would have if he had not been staying with a friend who called 911. I dont blame myself for the overdose, but I also dont think it would have happened if I hadnt asked him to leave.
He is now on his 3rd day of a 45 day rehab stay. 1st time. Im hopeful; because I know he has it in him to beat this. Im sure your fiance does too.
Thanks for sharing and I hope he gets help really soon.