Tears can't stop flowing. I am really a fool. All these time being played and cheated and I still haven't learn my lesson. 

He didn't want to bear any responsibilities

He just want to have fun and say bye

He didn't want to make any promises or give any assurance because it is easier to wash your hands off everything when problems come

He can't be bothered with all the things in the future because right now he is still a selfish man

He doesn't want to restart a relationship because according to him, it takes time and effort (which literally means he can't be bothered)

What he is thinking right now: "This girl is just a fool! I already can't be bothered with making promises and yet she still threw herself to me."

Wow!!