Thank you for your reply. I'm sorry that I'm in the school now and it's not easy to reply in Chinese. I just want to reply you as soon as possible.

既然不信任他又為何跟他在一起,既然在一起而他又沒辦法讓你信任,,你應先問問自己為了什麼,

Firsty, I'm with him is not because I trust him. is because I love him.
After being with somebody, people see something that they can never know only if they are close enough. And they start to be afraid or distrust.

測信字表示一切都是你自己想像出來的,還早ㄋ

Excuse me, I'm not imagining. Recently he really expresses that he would like to be with me for the future days. That's why I start to consider it seriously. And his father told him to present me to him if he is really serious to me.

Can you tell me what you see through the word I used "信"? Perhaps it's really helpful because I cannot judge whether he's sincere or not. Your words remind me that perhaps he doesn't really feel that. He just expresses sweetly.

Anyway, thank you again!