wait… so he asked you to do the test and then moaned about it!?
did you mean the result was a faint positive? if so, it means that he took cocaine at some point in the not too distant past.
depending on when the test was done maybe even prior to the night out with friends/maybe he did a small amount when out.
either way it doesn’t sound like a very happy conversation, or weekend.
he still sounds like he thinks you’re the one with the problem, you’re ruining all his “fun” x