Is this a weak fold?

[grizadams]

Poker Stars
No Limit Holdem Ring game
Blinds: $0.10/$0.25
6 players
Converter (http://www.neildewhurst.com/hand-converter)

Pre-flop: (6 players) hero is CO with A/images/graemlins/club.gif Q/images/graemlins/diamond.gif
UTG folds, UTG+1 calls, <font color="#cc0000">hero raises to $1.25</font>, 3 folds, UTG+1 calls.

Flop: 7/images/graemlins/club.gif J/images/graemlins/club.gif 5/images/graemlins/club.gif ($2.85, 2 players)
UTG+1 checks, <font color="#cc0000">hero bets $2</font>, <font color="#cc0000">UTG+1 raises to $15.5</font>, hero folds.
Uncalled bets: $13.5 returned to UTG+1.

Results:
Final pot: $6.85

[shpanko]

Stack sizes? Folding isn't terrible but yes I'd probably push as opposed to fold with any read that villain is aggro.