From my experience they rarely goes all in on stone cold bluff. The reason to go all in could be pretty bad(A9o for example) but he probably has something.

In this case, he very probably at least has the flush draw, if not the flush. Otherwise he surely got at least one pair, if not 2.

My point is the only thing he is beating here, is a flush draw or one pair.
One pair is possible, but i think the risk is too high. If he fold, he just lost 90 pennie on this hand. If he calls, now hes risking loosing 2.50 more and i don't believe odds are on his side.

Maybe i am wrong, lets see the results.