Got broken up with after three months because she lost feelings... feeling suicidal

So me and this one girl immediately hit it off and we started dating shortly after. The only bad thing? She lived all 8 hours away from me and I knew we we're never going to meet in person. We would always call every night and we were happy... we had a "son" (who was a stuffed giraffe named Jeffrey, no correlation to Toys R' US Geoffrey) But then about a week ago, she wanted to break up because she lost feelings and didn't see a future, I took this very badly, like I have with every single relationship I've been in... I've felt empty and alone since then...and I've wanted to kill myself. I have a chair and a ceiling fan...all I need is a strong enough rope.... I've cried almost every night since because I can't stop thinking about her...I have a therapist and a psychiatrist, I also take antidepressants, I just think I'm tolerant of them now...I just don't know what to do to help myself anymore.... I'm close to being an adult....I can't die this early...