brspuppy is unknown.
is the river bet OK?
Actually, I'm afraid of that he has a flush...
or should I bet/fold River?
(I also dont want to give him a chance to bluff me, so I didnt b/f here...)

can u tell me the definition of committed?

committed only applies if there's a chance youre ahead of your opponent's raising range. lets assume u had 43o in this hand, and u bet 14 dollars and he raised for like 2 dollars more. well, you're not committed because youre never ahead of any part of his raising range, you will literally win the pot 0% of the time if u call. so because of that, calling would be awful (even if its 2 dollars more in a 50 dollar pot).

if you had AK though, you should call if you bet that amount adn got raised, because now youre committed to the pot odds given to you, as long as u can win the pot like 5% of the time or so, not sure how the actual math comes down u can do that on your own (amt. to call)/(amt to call + pot size before river action)

with a hand like 77, theres a chance he raises like AJ or A7, etc. etc. so you cant possibly bet a large amount and fold.

in any case i think you played this fine, youre just looking to stack two pair, etc. if you dont think he'll pay off a river shove, you can probably bet/call like a 11 dollar bet.

if you were 200bb deep bet/folding would be more valid since there's more left behind and people generally tighten up deep.

and dont be afraid. if he has it, he has it, THAT TIME. but hwen you make this jam he'll also call the times he has 2 pair, etc.