How I feel when I'm with David

It's summed up pretty well in some lyrics in "Why Can't I" by Liz Phair

Holding hands with you, and we're out at night
Got a girlfriend, you say it isn't right
And I've got someone waiting too

Why can't I breathe whenever I think about you
Why can't I speak whenever I talk about you
It's inevitable, it's a fact that we're gonna get down to it
So tell me
Why can't I breathe whenever I think about you

Isn't this the best part of breakin' up
Finding someone else you can't get enough of
Someone who wants to be with you too

It's an itch we know we are gonna scratch
Gonna take a while for this egg to hatch
But wouldn't it be beautiful?