How do I get him back? If I should try.?

My ex-boyfriend and I have been going out for seven months. Though it was such a short time we really got serious. On the fourth month he realized that we loved each other so much that he proposed. We were engaged for three months and things just ended. A couple of weeks after the engagement we started fighting a lot. We both thought that this was brought on by the stress of family and work. When we got engaged it seemed that both our families and co-workers seemed to be filling our heads that we were doing the wrong thing. To top that off he started dealing with the stress of finances and school. Well during those months we had on and off fighting. It would become so bad that one of us would end up breaking the engagement/relationship off. This would last about a few hours and we would then both apologize and move on. Then a week ago his father had a stroke. He went ballistic. The whole week after this happened he started getting easily angry at anything I would do. In one week we broke up three times. Then yesterday I was to spend the night at his house and hang out together the whole day. When I got there we were just getting over a fight. I wasn't feeling good and wanted to eat so we went out to find food. Well half way to get something we started bickering and I said I wasn't hungry anymore and if he could just take me back to my car so I could leave. Well he did. And when he did he gave me back all my stuff and said it was time to move on. (Another breakup) I left his house in tears. Well of course, it not being my day, my battery died on my way home. I had called for his help since he was the only one in the area I knew. After calling a few time he finally called back. I told him that I was getting the battery checked and wanted him to come down to make sure I was not being misled. When he got there he decided he was just going to buy a new battery for me. Before I went to leave he told me then that he wanted me back. Well I was tired of the bickering so I told him we could talk about it over dinner. During dinner all he wold say was that he loved me and that it was the biggest mistake of his life to let me walk away now. At the time I was hurt so I would just reply that he was right previously. We had to move on. After he dinner he got in his car and left. I then called an apologized about our situation. He told me to come over since it was late. So I did. Well of course being in the same room did not help. I woke up in the middle of the night wanting him. I woke him up and told him so. H said he wasn't feeling well and that he didn't want to hurt me anymore. After asking him a few times more I decided there was no point in me being there so I was going to leave. He told me not to. He wanted me to stay. Well when I persisted he finally told me that he wanted to have . I said I didn't want to because the only reasoning he was doing that was because he wanted me to stay. He turned so angry. He started yelling for me to get out and to never talk to him again. When I did leave I called to see what was going on and why he was reacting that way. He told me he was tired of this and that to delete his number and never talk to him again. Well last time he told me to delete his number and we got back together he was hurt that I did so. So I called him a few more times to get an answer and he kept just telling me to go places and to never talk to him again. When I returned home I sent him an e-mail asking him to let me know what is going on and why is he acting like this. I want to say because of the extra stress due to the stroke of his father. I just don't know. I miss him like crazy and I am so hurt. I want him back. But the problem is that this is the longest we have ever gone without talking. Usually by now he would have called back asking me to take him back. Do you think he is really over me? Should I even want to be staying in this relationship. I just want to think that our fights have to do with very hard stress. If I should still be with him how do I get him back. Pleaes serious answers only. Thank you so much!