wow this is really weird

[HOWMANY]

75 i'll say 6 handed. villain is a tight player and apparently a big winner in the 40 game. dont want to say too much about how he plays bc he apparently knows about DD's site and that i post there sometimes so its not a stretch to think he might find out about 2+2 if he doesnt know about it already.

villain opens utg, crazy mike calls in lp, i 3bet TT in sb, call call

flop 752r
i bet, villain raises, mike 3bets, i cap, instacall by villain, mike calls

turn K putting two hearts
i decide villain has JJ exactly so the only choice i have here is to win the pot anyway. i check, he checks as planned, mike does not bet allowing me to c/r as planned

river 7
i bet for some unknown reason, villain raises, mike folds, i can say with certainty that he does not have JJ now and i'm fairly perplexed as to how he will have a 7

so ignoring that i should probably just c/f or possibly c/c this river due to the extreme possibility of mike holding a 7 here what in the world am i to do once villain raises?