AK folded to river raise

[kylma]

Crypto NL100 10-handed
I'm SB with AsKs and about $75, villain has me covered.
Only a few hands at the table but I already had him as loose passive and I had a guts feeling that he loves ace anything and calls 5xBB pf raises with Ax. (which made me consider calling the river raise for a while)

Comments on all streets welcome

Three limpers I raise to $5. BB and villain UTG calls.. The rest fold.

Flop 772 rainbow. I bet $12, BB folds UTG calls. Turn is 3, still no suited cards.. I check planning to fold since he couldn't be drawing anything on that flop. To my surprise he checks.

River is ace, I pause some time thinking whether to check and induce a bluff if he has a weak hand or to see how strong his hand is if he bets out and then call/fold depending on the size of his bet, OR to bet.. I bet $16 he raises to $60 and I fold, after some thinking because like I said I believe he is "capable" of having ace anything or AQ AJ AT and my own bet was quite weak)