V is 14/11 over 150 hands. 3 bet is 10%. Aggression is 9.0. River aggression is 50% (4).

When I tanked for a while he said "lol" and "fold" in the chat. I asked him what he had and he said "flush". It's a bit of a hero call but his line doesn't really make sense but villains always have it. After tanking for a while I knew it was right to fold, half heartedly clicked call, fortunately didn't click hard enough and then clicked fold. What do you think? Just fold and move on?

I'm 4-balling pre. Would c/c river as played.

How is a 14/10 over 150 hands a probable fish?

As played, 4bet or call pre is good, probably close, would have to know more about Villain's tendencies to state otherwise.

Flop and turn I think are quite obviously fine. River is a bet for sure, but I'd prob bet a bit bigger, like $2.20. When he raises you here it's virtually never a bluff despite him not repping too much. You can credibly rep some sets, some flushes, and you're going to have AK/AQ a lot too which I don't think a 14/10 is targeting to bluff against.

Fwiw I don't generally pay much attention to chat during hands, but I usually find that when people do start chatting during a hand they're often strong.

Def folding river, good spot for Villain to bluff but i really doubt you will ever see one here.

When people take their time to type, they are generally relaxed about their hand and are hoping to add some levelling on your side. Like hoping to touch your ego if they say you should fold and hoping you won't.