I think connor has become his type. Before, Troye seemed to go for outgoing, loud, and fun people - yes, like tyler- but now he has matured so much in the past year. I think now he wants someone who can talk deeply with him and discuss business and take creativity seriously yet also be goofy and relaxed. Judging by the way Troye and Connor have slowly adopted each other’s likes (styles, music, food tastes etc) I think they have grown into one another. That would explain how Troye could be caught off guard by falling for Connor (not to mention the whole oh-wait-you’re-not-straight thing).