I was doing well at 25 NL, so I decided to try 50NL. Initially i liked what i saw, felt comfortable there, but took some bad beats and just bad luck.

i want to know if anyone thinks i could have somehow saved myself 50 here:

I was dealt AA in dealer position. first to act raises to $1. 3rd to act raises to $2. when it gets to me, I raise to $5 total. Everyone folds but the guy who raised to $2.

Flop is rainbow 10 6 3.

I bet 10, he thinks, calls. At this point i put him on AK or a lower pair.

turn is a 9. I bet 20. he calls.

river is another 10, he puts me all in for like my last $2. of course i call and he flips over 66 for the house.

was there anything i could do in this situation, or am i just losing all my chips here? should i have suspected a set when he called on the flop?