No.
I had an ex meet a new guy while in CO and then break up with me over the phone after 2.5 years. I tried staying in touch b/c I felt that I still cared for her and blah, blah, blah. After about 2 months of making myself miserable, I said screw it and have steadily felt better. It's been about 5 months now and I'm starting to get back to normal. If I had cut the contact sooner, I'd be farther along.
The hardest part is the feeling that you are being mean for ignoring the calls and texts. It still upsets me on some level, but I'm hoping that will fade as well.
Hang in there.