<human>: Give me the gist of the text in a nutshell

I started dating my now-ex-girlfriend back in highschool when we were only 16, we quickly became best friends and lovers and spent two years together before our graduation. We then graduated together. Once the time for university came, she made a decision to go to the UK to do her bachelor's degree while I decided to remain in my current country as I got accepted into med school. 

At first we tried hard to keep everything fresh although it was long distance, we skyped weekly, phoned, texted daily...etc , but as time went by things started to fall apart, I got too busy with med school and we stopped phoning / skyping on a regular basis .. so our whole relationship was based purely on texts. 

Another 2 years past through university until she finally decided to break it off with me because 'I no longer cared' and 'was no longer the person I used to be' ... I guess because I was always the type who wanted to be with someone who I could see a lot in person, I'm pretty 'physical' in showing my affection (but not in a sexual way of course) rather than by all the long term stuff 

So it's been 2 months since we split up, and I'm confused, when people ask me how I feel about the situation I don't even know how to explain myself, it's almost as if it all happened and I just have no feelings towards any of it.. yet I can't imagine myself being with anyone else, I find lots of girls attractive, but I can never bring myself to make an initiative and talk to them and make an effort because I feel like there's no future for me with any of them .. but at the same time I've stopped dreaming about her, in fact I've started dreaming about previous crushes before I even met her ... it's all so confusing 

I'd like your thoughts/analysis?
<bot>: broke up with my girlfriend of 4 years and I don't know whether my brain wants me to move on or not?