villain is tag/nittish so far, running about 13/13 over 40 hands, hasn't done anything remarkable. I've been the most active player at this table, running something like 30/27 and 3-betting a lot. The hand right before this, I 3-bet his button open and he folded.

WTF does a 13/13 limp-reraise with behind a limper?

$0.10/$0.25 No Limit Holdem
5 Players
Hand Conversion Powered by weaktight.com

Stacks:
UTG ($23.79)
CO ($25)
BTN ($32.36)
Hero (SB) ($30.03)
BB ($25.15)

Pre-Flop: ($0.35, 5 players) Hero is SB
UTG calls $0.25, CO calls $0.25, 1 fold, Hero raises to $1.75, 1 fold, UTG calls $1.50, CO raises to $5.55,