It's totally understandable for Garam to be upset and not believe Jaehyuk. Especially considering how Jaehyuk WAS before he confessed. Sure, Garam's attitude was upsetting when Jaehyuk kept telling him "I like you", but it was because Garam was scared to trust Jaehyuk after all he suffered, BECAUSE of both Jaehyuk and his ex.
It's totally understandable for Garam to be upset and not believe Jaehyuk. Especially considering how Jaehyuk WAS before he confessed. Sure, Garam's attitude was upsetting when Jaehyuk kept telling him "I like you", but it was because Garam was scared to trust Jaehyuk after all he suffered, BECAUSE of both Jaehyuk and his ex.