sb/bb/ante:125/250/30

Co(hero)：6650
button：1616
sb：5695
bb：8969
utg：11782
utg+1：5951
utg+2(Villain)：13059
hj：15854
Villain raised to 750 ,hero called 750 with AsAh
In general， i would 3bet to 1900.
considered button only had 6,5bb, hero was super tight and just doubled up ,Villain was loose and always cbet 2/3~1 pot,so i just called here,however this time Villain made a change .

*flop*
【3c 9c 8h】( pot：2115 )
Villain：check
hero：bet825
Villain：call 825
turn【3c 9c 8h】【Kc】(pot：3765 )
Villain：check
hero：bet1882
Villain：call 1882
river*【3c 9c 8h】【Kc】【8c】(pot：7529 )
Villain：bet 3764
hero：fold

what would you do?