AI blind and losing a 90%er

Holy cow.
Wynn poker room:
Lost with a 90%er!
I had 77 and called a $15 pre-flop bet 4 way action.
Flop was K hi and i raised to $50 the weak CB from original raiser.
One caller.
Turn was miracle 7!!
Board K-5-2-7 - with 2 clubs.
I bet $80 on turn.
Guy calls.
River flush. I bet $50 and he called with T8 of clubs - SICKO!!!!!!!
I was 90%

Switched tables. David Rabbi said a guy was going AI blind!
I got to his left.
HE went AI blind! For $500
I had A2o.
I call with $392 (or close to it)
And he has Q8 and I WIN!!!!!!!!!!!
Wow!