Depression and relationships

My bf and I were having reltionship problems and so one day he decided he need to leave for a while. he told me he loved me and would be back in a week.He wanted to resolve his issues which also involved his family before he could work on us. The longer he was gone the more angry he became and he kept increasing the time that he returns home. He also started acting completely different. He is normally very polite and caring, but now doesnt return phonecalls, hangs up on people and when his father told him im taking this very hard, he just said" Im working on myself".
The first two weeks he still hugged me and kissed me and told me he loved me, but that he wasnt ready to come home yet. His third week he came over and when I tried to hug him he pulled away and said he didnt think we were gonna work out. But he said he loved me and thought of me everyday, and needed to see a change in me, for him to change his mind. He cant see a change because he only comes over once a week and never speaks with me in any way. He also said he didnt think he would ever come home now. Each week he seems to push away more, and even after he broke up with me he reached out for me then pulled away and began to cry but wouldnt let me hold him. Should i hold out because this is a part of depression or should i be serious and move on becasue we were experienceing relationship problems?

Im so stressed and cant ask him these questions becasue this week he didnt even come to visit.I feel like hes drifting farther away and theres nothing i can do to help him or us.