IPoker, €0.02/€0.05 No Limit Hold'em Cash, 6 Players
Hero (SB): €6.90 (138 bb)
BB: €5 (100 bb)
UTG: €7.03 (140.6 bb)
MP: €3.03 (60.6 bb)
CO: €11.63 (232.6 bb)
BTN: €1.40 (28 bb)
Preflop: Hero is SB with Q:d Q:h
UTG folds, MP raises to €0.15, CO raises to €0.35, BTN folds, Hero raises to €1, 3 folds
Considering the stack size, CO could just be preying on MPs presumed weakness.
I considered flatting, but wanted to isolate CO.
What is the best approach here?