(((heartbroken)))
Yep, I've been there. It is a very difficult position to be in.
My ex-hub and I were engaged when this happened, and the baby was 3 years old. He got the test, and it was 99.9% sure that he was the father. I was devastated, really! I worried that he would decide to leave me and go to his ex & be a happy father....Well, that didn't happen.
My ex-hub was deemed legally responsible to pay the county back for while his ex was on Medicare, and he had to pay for any other bills that popped up. His ex gf, however, was insistent that he have nothing to do with his son, ever. She threatened to take off with her son if he ever was allowed to see him. {That was pretty messed up!}
He sent birthday cards and gifts every year, signed Santa. Most were returned, but a couple were held onto. Many years passed by and my ex-hub's son is now an adult. He is married, and has a couple of kids himself. He found my ex on Facebook amazingly when he was 19 years old and in love with his gf. They're slowly working on building the relationship they never had....but they're many miles apart. Someday they'll meet in person.