The drama of his calling you about his "overdose" is pathetic.
Glad to hear you didn't play into it. If he can call you, he can call 911.
Oh, and at 5'9",180 pounds is a fairly healthy weight. There are plenty of men out there who will find you beautiful. You might want to try hanging out some places other than bars, though--you don't need to buy the same problems you are trying to get away from.