Feeling of Falling in Love

What is the feeling of falling in love?

Is it our heartbeat will become more faster? Is it our mind will keep thinking of someone? Is it we always want to talk to him? Is it we want to know him/her much? Is it we hope to share all of our things with him/her?

Recently, I keep having this feeling after talk with a friend that long time no see. I don't know why I'm so care of his life and always thinking of him and sometimes would have a weird feeling of him. Is it called falling in love?

I try not to thinking of love or relationship so much but sometimes I do feel lonely and hope that can someone to talk with. That's very confused me. A part from that, I try to manage this relationship for keeping myself falling in love, another part, I hope I can have a good relationship, just see how am I supposed to do?

If can, I hope we can be together but I'm afraid of ruined our friendship and hurting one's feeling. I try to act normal but sometimes I just think that he's the one coz he had all the qualification I try to get.

Looks like falling in love is quite irritating sometimes.