I've had a good time reading this thread, so I guess I will contribute now...
It will help shape the context of my story if you first know that I am female. :P
My senior year in college I moved into an apartment with 2 of my classmates and one of their friends. I needed a bed of sorts for my room, so my mom and I picked out a futon at a bed store down the road. It was scheduled to be delivered after my classes the following day. Maybe 10 minutes after I walked home from my classes the next day, two guys about my age arrived to deliver the futon. After a short while they were finished setting it up. I thanked them, they left, and I grabbed a sandwich from the fridge. Right as I took a bite I heard a knock at the door and it was one of the delivery guys with a delivery confirmation paper for me to sign. After I signed it, he was still standing at the door for a few moments so I thanked him again. As I was about ready to shut the door, he asked if I was interested in seeing a movie sometime. It took me completely by surprise -- I had a sandwich hanging out of my mouth while holding and signing the paper, looked disheveled from the wind on my walk home, and was a little sweaty from the summer heat. I was taken back, and felt flattered, so I thought I would give him a shot. He handed me his phone so I could put in my number. I realized after he left that I didn't get his name. He texted me shortly thereafter and we had a small convo about him noticing my DBZ DVDs before deciding on where to meet for a date.
He picked me up the following Friday to go to a local game place where I met his friends and played games. We were both nervous, but had a good time. On the drive home he asked if I would be willing to date exclusively with him, and I thought that was awkward... I told him that it was a little early to tell, but that I would like to hang out again. I barely knew him, but I did think he was worth getting to know better.
Over the next few months we would visit each other and see the occasional movie and things like that. I came to learn that he was a townie and generally didn't think things through...he put himself down a lot and liked to give unwarranted and needless apologies to me for "not being smart." The earlier dates had some pretty awkward and botched moments, but I was touched that he tried so hard to impress when we did meet. All the while I never developed feelings for him, and it was apparent that he developed feelings for me from the very start. Things weren't panning out for me. His work schedule was inflexible. He worked all day Tues to Sat with Sunday and Monday off. Weekday evenings he had a workout schedule and every Friday night he went to the games place, which I lost interest in. My schedule was open weeknights and the weekend. That pretty much left Sunday as the only day we both had off, and Sunday is usually the day college kids cram the week's worth of homework and laundry in. My major was graphic design, so I always had a ton of homework, but Sundays were typically the days my roommates and I would hole up and crank things out. The guy and I would see each other once a week at best, but we only lived 7 minutes by car apart. I stopped initiating conversation via text everyday to see if he would put more effort into maintaining our relationship. Over two months he let two weeks at a time go by without talking even once. Yet, when I eventually got the courage to meet with him to tell him I didn't develop any feelings for him and that things weren't working out, he seemed completely shocked. Afterwards, he started texting me regularly for a week asking me to reconsider.
Months went by and I was close to graduating when I got a text out of the blue from him asking if I had any single friends. *facepalm*
And then a couple of months after I graduated, he asked me if I would take him back. I told him no. I graduated, moved 3 hours away, and I had less respect for him after his desperate attempts, especially considering that we were hardly anything more than a title (girlfriend, boyfriend) to each other, despite how he cited strong feelings for me. Two weeks after that he posted on Facebook about how happy and lucky he was such a beautiful girl would give him a second chance. He tagged some other girl and I deleted him from my friend list. He must have gone around to all his ex's asking for a second chance. Yuck.
That sounds pretty bad. When a person acts like that, the only "feelings" they have are purely sexual.