HELP! Am I being sensitive?

(Kind of long but the context is needed please read and help, I feel so alone and confused) So I used to work as an All Star cheer coach. When I moved to Cali I found a mediocre Gym that was not quite my style but they were new and I had 15+ years of experience so they wanted my help getting off the ground. The owner and I got along to an extent, we did bump heads a ton when she wouldn’t take my advice and it would backfire on her. So I pulled back and mostly just coached tumbling and helped ONLY when asked on everything else. When I got pregnant I told them and had a little gender reveal but shortly after had to take LOA due to have HG and not being able to function doing both my full time job and this. I missed them and tried to stay in the loop but was shut out! I invited the entire gym including the owner (who I considered a friend) to my baby shower and just 2 of my girls showed up no one else. No one reached out to me, no one checked on me nothing. When I checked in with the owner she snapped that I stopped talking to her and she felt abandoned. I’m sorry… I was growing a human and trying to survive. Since then it’s been very one sided of me reaching out to her trying to reconnect. Fast forward to now 8 month PP I’m trying to get back to work. She asks for her key to the gym back and I asked if she didn’t want me to come back. (I was the gym director, not just a random coach) she said about the same thing! Because claiming I stopped reaching out so she just assumed I didn’t want to come back. But I WAS THE ONLY ONE REACHING OUT! I feel so shitty trying to come back to life as most everyone just stopped talking to me no matter how much I checked in with them. Like I really just did not matter. Idk. Am I being sensitive or are my feelings valid. Idk if I go back to the gym or just move on to another. Thank you for reading all the way through sorry it’s long