River decision/am I committed?

[johnnybeef]

This one is from a 22, and we are about 6 hands in. Im on the button with t700 and i look down to see 2 black aces. All fold to the hijack who open limps (has me covered). I make it 60 to play, the sb folds, the bb (has me covered) calls, as does the hijack.

Reads: Hijack is a calling station, and could be limping with any two here.

BB: hasn't played a hand yet.

flop (190) TcQdKc BB minbets t15, hijack calls, I call.

Turn (235) Jh BB minbets, hijack calls, I raise to 250, bb calls, hijack folds.

River (750) Td BB shoves. I have 350 behind.

Comments on all streets appreciated, I think that I played it perfectly on all streets, except perhaps the river, which I am still unsure if I am pot commited or not.