NEED ADVICE!

I’m a performer, back in June I was on a contract in this little town for about 2 1/2 months. I met this guy there, we fell in love in no time! It was amazing, but he was living in the town at the time and has now went back home to a totally different city and state than I reside. We knew it wasn’t smart to fall the way we did, especially with the possibility of us never seeing eachother again being very high. We did anyway. HE GOT MY NAME TATTOOED ON HIM! I know, crazy, it was a surprise. Now, I’m back in my hometown, he’s back in his. Just a few weeks after I left the town we were in together, he tells me he’s found out that another girl is pregnant, 7 months pregnant, I have no idea to this day who the girl is, but I know the baby was obviously conceived before we met. Fast forward a bit....the baby is born, on my birthday 🙃 HAPPY BIRTHDAY TO ME. I’ve naturally started to stray from the connection we have, when he first told me about the baby, I was hurt, I’m not sure at what exactly but i was sad. Now for my question: Is it wrong of me, to be hurt, or upset by this situation, mind you, I still don’t know who the girl is, or their relationship, and I still don’t know if I’ll ever see this man again in person. Is it worth it? I’m not sure if he even recognizes that the baby is what has caused me to disconnect from him, but he never felt the need to make me feel secure about any of it. I don’t know how to feel...