[noir]

I'm guessing that your stats on the TAG are from this session only based on your writings. This would factor into my read, as would previous action at the table.

You have a line on him, and you think you know his line on you, so (and this is where previous hands could come into play) he may very well read your threebet as an isolation attempt and/or have a hand that is ahead of your threebetting range. And we don't call three cold much these days, do we? Folding isn't fashionable either.

If I had a long history with him and knew he was multitabling heavily, then I'd narrow things more, but perhaps he's deliberately putting you in a sticky spot.

So raise the flop and go from there.

And if any of these speculations are accurate, take note.