I can understand Rin. Taiga keeps saying some hurtful words thats why Rin keeps finding a partner. When Rin starts to like Taiga but he know or thinks that 'Taiga will reject him because he doesnt like Omega' and Rin wants to be loved and loved by someone, so he still believes on a fated pair. Thinking that Taiga DONT CARE ABOUT RIN, So when He found that Kaoru was his fated pair he immediately wants him. But all he really want is a partner and be happy. (●￣(ｴ)￣●)
I can understand Rin. Taiga keeps saying some hurtful words thats why Rin keeps finding a partner. When Rin starts to like Taiga but he know or thinks that 'Taiga will reject him because he doesnt like Omega' and Rin wants to be loved and loved by someone, so he still believes on a fated pair. Thinking that Taiga DONT CARE ABOUT RIN, So when He found that Kaoru was his fated pair he immediately wants him. But all he really want is a partner and be happy. (●￣(ｴ)￣●)