Why is it I get really warm when I only talk to this one person?

Probably because your mind associates this person with comfort or happiness. Joyful emotions make us feel warm or relaxed. Do you have a memory of you two involving physical warmth (like lying by a fire place) or when you're with this person do they make you feel safe or comfortable.

You want him. You feel that you are comfortable around him and that you are secure with him. I know that I am really warm when I am around my girlfriend, like warmer than I usually am. So yeah, try him out, see what happens.

He's put a spell on you? ;0)

You're attracted...physically.....and as the person below says....what we 'want' isn't always what's best for us.

Take a good look at the whole package (and I'm not talking about his butt) before you let your body rule your brain.

One of two things...

1. This person you're talking to is on fire.

or

2. Love is in the air.

You like this person as a friend or you find this person in some way attractive.

It is a biological attraction...be careful because that does not mean that this person is everything you want or need him or her to be.

Your blood pressure rises and that makes it feel warmer to you

Are you going through menopause?

because you are physically/chemically attracted to them... can still be royal arseholes tho..

falling in love?