[Antinome]

It isn't a flop check-raise, it is just a minraise.

This can mean a number of things these days, while it is sometimes a monster- and there are lots of monsters on this flop- It can also mean, 'I have a pair, and don't want to fold cause I've noticed you cbet a lot'.

On balance I think given stack sizes and your flop lead you are pretty much committed here. I would stick it in. I agree it is kind of marginal.