<human>: Can you summarize the given text in a few sentences?

Background: we've been married 9 years and we recently moved to where recreational marajuana use is legal.  I (Abby) enjoy using it occasionally, much like having an occasional glass of wine, not getting wasted. He (John) doesn't approve of any use but has never given me a reason as to why he disapproves, just says "I don't understand why you want to do that." My response is that it's something I like to do every once in a while.  I don't drink alcohol, it just makes me feel sick, smoking is just a nice way to unwind and its legal here so I don't see the issue he has.  

Anyway, this past weekend, my sister (Lily, 25) was in town with her new boyfriend (Alex, 30).  We were meeting Alex for the first time however, he and I had been texting off and on since Christmas when he asked for my help choosing a present for Lily.  Alex enjoys smoking and John knew this.

Towards the end of the weekend I was talking to Alex and he tells me about a conversation he and John had.  Apparently John said can I ask you something and you not tell Lily and Abby? Has Abby smoked anything with you this weekend? Alex tells him no and John seemed satisfied with that.  Alex told me this because he considers us friends and had just met John.  

This is not the first time he has asked someone if I have smoked.  My brother (21, lives nearby) smokes often and has been quizzed by John if I ever smoked with him (shortly after we moved here).  I'm not sure what to do with this or how/if I should approach John with this information.  Obviously he has some sort of trust issue although if I ever bring up trust he insists he trusts me implicitly.  I'm appalled that he asked Alex, considering they just met this weekend.  I just really don't know what to do with this situation.
<bot>: My husband asks people behind my back if I've smoked marajuana with them.  Not sure how to go from here.