How can I save my relationship?!

[Pinklace21]

I am so desperate to save my relationship but I have no idea how. This is the first time I have ever done anything like this on the internet but I seriously need help. I have been with my boyfriend for a year and a half now. In the beginning, it was great. He helped me through some of the roughest times in my life. I have a daughter that is 5 and she has a lot of handicaps. She has been in and out of the hospital too many times to count and has had endless surgeries. I had just split up with my husband at the time that I met my boyfriend now and my daughter had just gone back into the hospital. At first, he thought I was perfect for him, and I thought he was perfect for me. He took on my daughter like it was nothing for him and he doesn't have any children. Anyways - I used to get a million compliments from him everyday, he always wanted to be with me, and well- I was just perfect. He always used to say he wanted to have children with me and he wanted me to be his wife. Now anymore it just seems like we fight and argue all of the time. He started going to college last semester and has class MTW from 6-10 at night. He works everyday from 8-5, and I work from 11 at night to 7:30 in the morning. I know that his school and work are very important and I support him 110% but in his free time he doesn't make an effort to spend time with me. He is never excited to see me anymore or ever says anything nice about me anymore. He thinks all I ever do is whine and gripe about things which in reality - I might but it is only because I miss him and want to be with him when there is extra time but he don't act like that. I am so sick of being lonely and degraded everyday - Please help, what do I do to make this better - I don't want to leave or seperate, I love him very much but it can't be like this anymore.