...I'm going to trust you here, okay?

I'm assuming you want to differentiate between platonic and romantic love.

Both types involve deep affection, but only romantic love involves a desire for physical intimacy. You're thrilled by touch and want to touch more, perhaps? Kissing is generally part of this. Overall, it involves attraction, usually physical attraction.

If that does not answer your question, then I think your question needs to be more specific. Distinguish what from what?