The key to this is how does the agg BTN play post flop? If they are agg pre passive post then calling is ok when you are deeper--if they are agg post we do not want to call as we will be check folding far too often--therefore we would be 4 betting to 2.5x their 3 bet folding to a shove.You're in the middle of an MTT and get AjO in the cutoff after a mini MP2 boost.
The button is aggressive and generally makes light 3-bets.
👉 What is your move here — give up, pay, 3-bet or all-in