Blue,
"Just have a feeling something is wrong." Methinks you are correct.
"Perhaps i am just going crazy " I don't think so.
Based only on your description of BF's known "behavior when using" behavior..........I think he is using again.
I would be pulling way back from this relationship.
Jim
Cat = Khat, natural drug containing plant - chewed. Now lab produced - cheap substitute for methamphetamine.