Victim was planning to free herself from drugs
Jobless Ifty Hussain, 37, shared a run-down house in Bradford with Ms Blamires, 36, said he regretted that she had been working as a prostitute.
Named "Shifty Ifty" by some neighbours, he allowed his partner to walk the streets to pay for the heroin they both needed.
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Hide AdHe said: "I wish I had never let her work the streets. I hated her being a prostitute but turned a blind eye because we needed the cash."
Ms Blamires's remains were discovered by police in the River Aire in
Shipley.
Mr Hussain said: "I wish it was me who was dead. We were planning to get clean in the next month, make a fresh start and get on with our lives together.
"She was so pretty she could have been a model," he said.
Mr Hussain also denied suggestions by some neighbours that there had been disputes between the two about her working the streets.