In that case, just fold. It's not worth it if he overbets especially because of our relative position, unless villain behind us will be covered as well and we feel we are well ahead of the raiser's shoving range and the villains range relative to this flop - unless we know he always leads flush draws or something, in which case it may be more likely he has top pair or better. If he checks though, he likely has alot of air in his range also, so it probably is just more important regarding what the button has unless the big blind has you covered for a significant amount.

I hope that sort of makes sense? I just kind of rambled some words together and I'm not sure I get it myself.