Love failure depression. Please : (

Being broke up with my girl friend i am feeling very uneasy. My mind is full with depression. I cant do anything. I am trying but can not do.. My gf says that i had no time for her..but i was trying my best. And another problem was i am unable to share some thing with my gf..because of my prblm..but i have shared anything at last..and tell her that i will not do it again..i will tell you all share all and give you more time.. Sorry please come back. I was wrong please..but she is not agreed with the deal . Now i am depressed. I am texting her sometime to come back and understanding the situation but she is not agreed. She seen my message but not replying. Our relationship was for about 4years. And suddenly she doing this. Please help me. Sometimes i am thinking of suiside. Please help me i cant forget her. I am in depression very depressed i am..please i cant take any decision.please help me. I love her till. Please i am very very sad. And suicide moment. Help me please.please :(