Here's the thing. When you fall in love, it's like you are drowning. One second your head is above the water, warmth flowing between your fingers, across your back. The sun is playing on your face, lazily kissing your cheeks. Then, next thing you know, water is rushing into your lungs, pulling at your chest, filling your body with a mixture of euphoria and terror as you plunge below.

But, as you sink into the dark depths, you notice something. You notice that your only choice is to give in, which for some people is hard, giving your life to another power. But once you let go, once you give yourself over, there is suddenly no pain, no sadness, no...anything. Just you and the other. You and the darkness. And, sometimes, we all crave this release. But, most the time, all I can do is fight this urge. Fight this unrelenting want to give myself over to them. This almost insatiable, almost irresistible voice of the deep calls to me and I swoon at the rich tones, the chocolaty notes, leading myself over the surface. The sirens of the dark pulling me in closer, edging me into the water
Dive down They purr into my ear
Just a little deeper Croons another
Be freed One murmurs, words caressing my ear.
It's so easy, so pleasurable, so...simple. Just to take a step off the diving board, and sink all the way to the floor.

That, is what it felt to fall in love with the Doctor