tell me when i am supposed to fold here... if ever.

he could easily have JJ+.

is stacking off here just part of the swings involved in ring?.... sometimes they have a set sometimes JJ-KK..... ??? i just want to know if i'm supposed to learn to fold here.

Full Tilt No-Limit Hold'em, $0.25 BB (6 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($14.90)
Hero ($25.10)
BB ($11.35)
UTG ($54.20)
MP ($37.95)
CO ($28.05)

Preflop: Hero is SB with A, A.
2 folds, CO raises to $0.75, 1 fold, Hero raises to $2.55, 1 fold, CO calls $1.80.

Flop: ($5.35) T, 2, 4 (2 players)
Hero bets $3.85, CO raises to $10, Hero raises to $22.55 (All-In), CO calls $12.55.

Turn: ($50.45) 5 (2 players, 1 all-in)

River: ($50.45) 9 (2 players, 1 all-in)

Final Pot: $50.45

Results in white below:
Hero has As Ac (one pair, aces).
CO has Tc Td (three of a kind, tens).
Outcome: CO wins $50.45.