<human>: my boyfriend's friend is currently staying over at our place for the weekend (typing this quickly while they're in the living room). my boyfriend and I have been together two years. it's the first time his friend an I have actually met, though we've spoken briefly online. there have been two instances now when he's unnecessarily touched me - once when he put his hand around my waist while I was holding a door open for him to throw something away, and another time when he swiped his hand across my upper back as we were entering a doorway. the second time has caused discomfort to the point that I don't really desire to be in the same room with him, which is inconvenient as it causes me to appear reclusive. my boyfriend's also noticed that I'm bothered.

I don't know whether to bring it up to my boyfriend now while it's an immediate issue, or to wait until his friend leaves to avoid any potential awkward interaction that could result. or maybe I just shouldn't bring it up at any point. I don't know this guy, so it could just be that he's an affectionate person. still, he's seemed to make sure he's touching me when my boyfriend can't see.

so, my issue is one of timing. should I bring it up now while he's still staying with us and potentially cause awkward interaction, or after he's left? or does it not warrant attention at all?

Could you distill the essence of the text into 1-3 sentences?
<bot>: boyfriend's friend is staying over for the weekend and has unnecessarily touched me twice, not sure if I should bring it up now and potentially make things awkward, or wait until he leaves