Depressed And Betrayed

Reccently within the last couple months my girlfriend of 5 yrs broke up with me. Our relationship was getting really bad and it was starting to get physical so I figured it was for the best anyways. I went into a deep depression for a few weeks and then I started to feel a bit better. I started to hang out with this guy who I have been best friends with for years and we always liked eachother but since I was previously in a relationship we didn't see eachothwr for awhile. Since I was newly single we tried to reconnect and everything was going great with us he was so sweet, he would cook and clean and I always had an amaing time being with him. Then about 2 weeks into this I find out that he selpt with my bestfriend and she is now pregnant. I haven't seen or heard from him since she found out she was pregnant and honestly I have no desire to talk to her **** *** either. Im just having a really hrd time because I have a very small group of friends prob like 4 or 5 and im about to loose two of them and the rest of my friends feel so bad that my other ex-friend is going through this pregnancy thing they don't even care how hurt and upset I feel. Lately I just sit in the house and cry I get myself together for school and work but after that its back to the crying and depression. At this point I don't know how much longer I can do this. How long can someone feel completely alone before they cant take it anymore.