Most Helpful Guy
Now, first thing to do, is to do what you don't want to do; tell him.
He must know the 'why' you are behaving this way.
Let me explain it this way: If a thieve comes and robs from this old lady, you would think the thieve is the cruelest man alive. But if i told you, that the thief's family haven't eaten in 2 days, you would understand why he's stealing.
I personally suggest you to tell him the truth, does not guarantee him to come back to you. But at least he'll know that what you're doing is not intentional, and that you're receiving help for the issue.