If someone starts acting differently around you, that could mean they have a crush on you.

如果有人在你身边时开始表现不同的行为，那可能意味着他们对你有好感。

I have a crush on you. I've been coming on to you. I am infatuated with you. I think I like you. You've been on my mind all the time.

小时候，我们也要谈很多次的恋爱，有一天，我们长大了，却发现，爱一个人直到真正的爱上他是用一辈子的时间都不够的。