NL500: stop bluffing me!

[TA3]

sorry guys, I cant get converter to work.

16/12 agro villain. no real read, maybe slightly nitty. I open KJo to 20 at UTG+1, villain calls at SB. J75 (2 clubs). She bets 30 into 45, I call. turn is 6h, I called 75 into 105 pot. River is K of clubs. She bets 175 into 250, can I call that? 271 left after calling.

I am wondering what kind of PT stats you guys would look at in determining whether to call or not.

Another very similar hand. Agro villain 21/12. UTG limps, I raised AQo at UTG+1 to 22, both button and UTG calls. UTG checks Q74r flop and I decided to get tricky and check. Buttons bet 37 into 74. UTG folds and I call. Turn is 6 (2 clubs), I check called 75. River is Ac. I check and she bets 297 into 297(62 left for betting after calling)...... what to do?!!!! maybe I should have blocked the river small.

My main question is the river line. Any opinion is welcomed, I will share my thoughts later.