
... I guess for someone whose always played around, when faced with his opposite will become scared.
He probably doesn't want Dongho to feel he owes him something, or to settle for the guy he met at a motel. He might actually want to teach this child that there are better guys around him; it doesn't necessarily have to be him or his brother.

Yes. You're right, but it also depends on the personality. And Dongho is strong; if could go through being bullied in a daily basis then he can come stronger after all this. There are times in life that it is needed to be less emotional and think rationally.
Dongho will be upset and even question himself to have been the cause, but afterwards he will know it was the best thing to ever happen to him. He will now not allow others to groom him to be abandoned. He will be above all that.
Teenagers are faster in recovering than adults.
Um... It's about time for Lucas to come back!!!
Intruder alert! Intrested in the wifey!