AK 400 NL pot to big hand to small?

[savman]

400NL 6max on party. the table has been playing passive and i have assumed the role of table captain. i have been taking down pots mostly w/o showdown for thirty minutes. table is getting suspicous b/c i recently had a river value bet called by A high when i had trip jacks. however, villain in the hand is a complete unknown. he was at the table when i sat down but he sat out the entire time and was booted from table. he recently rebought for 100BB. in the few orbits i have seen he has been raising 2.25BB from any position and taking down pots. he makes his standard raise from UTG and i have AK in the CO.

(dont have HH was played on another comp.)

villain ~400
Hero ~600

villain opens for 10
hero makes it 30
blinds fold villain calls

FLOP 10 6 4 pot (~66)
villain checks and i bet 45 he calls (oops)

TURN K pot (~155)
villain leads for 85, hero ??????

also, it is relevant that i have not rr pf yet this session. in fact there has not been a rr pf this session by anyone. villain likely does not have a database on my play as i only have a couple thousand hands of 400 NL on this SN. i guess he could have some 200NL not that it would do him any good as i defenitely make adjustments as the two games play very different imo.