Bullshit. He was pining over Fujiwara this whole time, literally getting weak just being near her and going out with her. Had a whole bunch of reasons why she's so amazing, and discovered new ones too.
And then he's suddenly 'oh I love Takeru too I guess', because... nothing? Because that guy almost molested him? It has no basis, no real shown reasoning for the change of heart. And to think, this out of nowhere feeling is somehow stronger than his love for Fujiwara and his whole life as a straight man? Completely unbelievable.