<human>: Last year my GF moved country to start a new job so I happily followed since I loved this girl with all my heart. I struggled with the new language, getting settled and ultimately finding a career so I came back home 4 months to continue my career here.

We had done the long-distance thing a little before but this time it was hell. It was torture for both of us. After two months of this nightmare stress I decided to end things. There was no fulfillment anymore, no happiness and we were gaining nothing from the relationship. She was obviously heartbroken but ultimately she agreed it might be best.

Now two months later, I'm miserable. I think of her every minute. I miss her, I want her, I feel like I need her. She had everything I look for in a partner. Everything! But I know our relationship couldn't have lasted. We both had issues that made eachother incompatible. She's a planner, I'm laidback. She can be jealous, needy and admittedly manipulative. They're traits I cannot live with. But no matter what, I still can't get her our of my head. She's so stunning, smart, creative, talented. 

I stupidly slept with some girl last weekend and I cried like a little girl the second she left. The sex was alright but it just felt so hollow; meaningless.

Did I do the right thing? Is it normal for me to feel these things eventhough it was ultimately me who pulled the trigger? Her birthday is this week and all I want to do is buy her the best, biggest, most meaningful gift I can but I know I can't and it hurts so much. Help anyone?

Can you condense the text into a few key points?
<bot>: I broke up with my GF and it hurts a lot more than I thought it would. No feelings of liberation, only misery and doubt. Normal or have I made a mistake?