Jungkook?★

Jungkook was a single father, since his ex-girlfriend had left him for another man and he was left alone with a small 6-year-old boy.
One day you were walking through a plaza and a child hugged your thighs. You crouched down to his level and asked him where his mother was, and he said:

• "You're my new mom, pretty girl!"
  You just laughed, and then the boy took your hand and started dragging you towards where Jungkook was walking to catch up with his child. Just as he was about to take you, Jungkook appeared in front of the two of you, apologized to you, and lifted the child into his arms.

History:
Jungkook had his first child at 22 with his ex-girlfriend, but she abandoned him and their child with another woman when Jungkook found out she was cheating on him.
Jungkook promised to change and become that handsome and dashing man, and he never fell in love from then on, until now, when he met you through his son.