[ Friends ] Open Question : Should I stay friends or forget about him?

I'm 20, the boy is 19. We met on an online dating site about a month ago. We went on a date on the 23rd and it was a lot of fun. We ended it with a good night kiss. I thought we hit it off really well and he lead me to believe he really liked me. He asked me out for the next weekend, but we didn't bring it back up and didn't end up going out that weekend. Early last week, he asked if I wanted to be his Valentine and we were going to go on a date. On Thursday, he told me he honestly wasn't sure he'd be able to make it on V-day. His mom is dying of cancer, so I just attributed it to him having to take care of his mom (which was the primary reason for him not being able to come). On Friday, a girl left him a pic comment after me, saying "you are so hot!" I noticed he didn't reply to it, but he didn't delete it either and I tried to not let it bother me. On Saturday night, he sent me a message with "I can't Monday", no explaination or anything. Yesterday morning around 4:00am, I was scrolling down my news feed and saw he was now in a relationship. We had a talk yesterday morning and he explained that his mom was getting worse and that he's been having to take care of her and his friends have been coming over more. Him and the girl who left the pic comment, had been getting closer and next thing they knew, they were boyfriend and girlfriend. He said that his friends didn't want him to tell me, but his girlfriend insisted he tell me (she knew about me and still made her move..who does that?). He also admitted that he didn't know how to tell me before, but that he lost interest in me after our good night kiss because he didn't feel a spark. Basically, he asked me for a 2nd date, even though he had no interest in me. He says he still wants to be friends, but he doesn't want me to be upset with him, so he thinks I should delete him and forget about him. I'm not sure what to do. What's even worse is his best female friend (who likes him, but he likes her like a sister and he claims he likes me the same way) added me on Facebook, so I'm not sure what to expect. Should I stay friends with him or just delete him and move on?

Source: http://answers.yahoo.com/question/index?qid=20110216075855AAEtWaQ

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