Manwhas that give the MC a curveball and introduce a second character that wants all of their love and attention. Some are true love triangles where the MC truly doesn't know who they like. Others just give one sided possessiveness/obsessiveness where the MC's true love has to protect them
Love triangle score: 3/3 = the MC cares for both guys 2/3 = the MC has feelings for the new guy but the ex is trying to win him back 1/3 = the third guy's love isn't well developed enough