Well good on you for walking away and seeing you were on tilt and knew what could’ve happen. So being in the SB yeah need to raise a little bigger cause you will always have to go first no matter what or who your up against. Give yourself a fighting chance when you raise better. The check flop is a good play. You are first to act so you have no information. So checking is the best play always when playing out of position. Had MP just bet you have a chance to call see a cheap turn or chk/raise and really put him to the test. This flop you are crushing. Giving them someone what standard call ranges for both player. (bb 17% and MP 12%) You have about 53% Equirty vs 24% and 23%. So calling is a good call on this. This they have a set well its bad luck. But you can’t always be scared of monsters under the bed. Just was bad luck there bro. Even giving that there is another player in the BB thinking your EQ is to good to pass up here.