The boy didn't reply after reading the instructions.

Girls love to share trivial things in life, but boys may not be able to give appropriate responses, and they often don't know what to answer and don't respond, which leads girls to feel that they are not comforted and are treated coldly. However, when some boys think the topic is similar and can't think of other topics to talk about, they end this round by "watching".

Replace reply with read.

For a boy, "reading" means the same thing as "knowing" and "I read". Instead of returning a meaningless map, it is better to display the reading as his response. However, for girls, not replying is equivalent to not taking themselves to heart.

Forgot to reply

I saw it, but I forgot to go back! Every time I hear this sentence, I always feel that the other person is deceiving myself, but … most boys really forget it. Whether at work, playing games or riding a bike, I read your message but I can't reply at the moment. I want to say that I will come back when I have time. When I finish the work at hand, I will forget to reply to each other if there is no small sign I have seen.

Deliberately don't want to go back

If your relationship is deadlocked, it may be that what he has seen deliberately ignores you. If you two have an affair, he can't read it back. To put it bluntly, he doesn't like you that much, and you don't have to waste any more time on him.