Villain is a 58/15. Is this simply a crying call?

$0.1/$0.25 No Limit Holdem
8 players
Converted at weaktight.com

Stacks:
UTG bobos7 ($24.75)
UTG+1 xtreme1515 ($11.55)
MP1 xonrne ($3.00)
MP2 Quelle84 ($23.05)
CO Hero ($25.60)
BTN munichtwo ($3.45)
SB $p_bracelet$ ($6.30)
BB Atze2007 ($13.70)
[xtreme1515 posted $0.35]

Pre-flop: ($0.70, 8 players) Hero is CO
bobos7 calls $0.25, xtreme1515 checks, 1 fold, Quelle84 calls $0.25, Hero calls $0.25, 2 folds, Atze2007 checks

Flop: ($1.45, 5 players)
Atze2007 checks, bobos7 bets $1, 2 folds, Hero raises to $2.90, Atze2007 folds, bobos7 goes all-in $24.50, $21.60 to Hero ($22.45)?