我的理解:
to have feelings for someone 对某人有感觉,有好感。比get a crush on someone,“迷恋某人”的程度要浅一些。另外,个人感觉have feelings for someone是逐渐产生的赶脚,而crush on someone,有一下子就迷恋上某人的意思。
Have a crush on you
have a good impression on sb.
have a good feeling about sb.
have a thing about sb
have a crush on sb. 美剧里老外的地道说法