If someone confessed their feelings toward you, how did you feel about it?

By feelings, I mean romantic feelings. Were you caught off guard? This is a situation I’m experiencing, kinda. I don’t know how to handle situations like this very well. I just let him down gently, told him I was flattered, that I admired him for his guts for coming forth like this but then he started acting completely different, he said, wala daw akong pakiramdam. I said sorry pero ganun parin sinabi nya. I’ve lost a good friend that way. It just proves the old saying that guys and girls cant be just friends, theres always one who falls for the other sometime along the way.