Taeju fell first and definitely fell harder.

Surely, you and Taeju are more than friends but less than a couple. However, in his head, you are already his. Taeju has been contented with that arrangement often called friends with benefits.

He didn't feel the need to label it, not until he spotted a vase of roses on your kitchen counter that were totally not from him.

"Nice flowers." Taeju says and started torturing himself with thoughts of you seeing someone else beside him.