AA in SB

3bet preflop is fine

cont bet standard. I would prefer 3b on the flop instead of calling with the intention of donking turn. If you call flop you HAVE TO check Raise. do not donk ever.

as river played bets cool.

but i really hate you donk, please dont ever do that again. check raise is much better you get 1 more BB out of it.

note: don't post spoilers. we dont need the results.

Preflop is standard. On the Flop you made a mistake by just calling. Your hand might have appeared more invulnerable than it actually is. You just got one pair and the pot is already quite big. the bigger the pot is and the more outs / equity your opponents have, the more you should be inclined to erase your opponents chance to catch up on you.

A lot of straightdraws are possible and you wanna kick out UTG and gain max value from UTG+1 who might decide to check back the turn if a scarecard appears of if he does just have drawing hand. As played you should checkraise the Turn. IF you donk you'll just get raised by better hands but you miss out the value from worse hands that would have bet if you'd checked but now just call to your donkbet.

As played the river is a pretty easy bet/call since utg openraised and i don't actually know what he's trying to have here. a 7 is really unlikely to be in his range. it's more likely that UTG+1 got 7x. I guess checking the river is also a viable play.