No good wishes on my birthday.

I tried to make this as short as I can but without leaving important details.

My friend of almost 2 years who I care (cared?) a lot and supported since day one and mostly during her husband deployment didn’t text/messaged/anything to me on my birthday which was 2 days ago.

She wrote me the day before asking if I could babysit her dog but I had late minutes plans for my birthday since everybody were going to be busy that day and didn’t want to have a sad birthday. It bugs me a lot that she had time to post on her social media about life but didn’t had time to a simple happy birthday. I’m not sure how to take it. I’m hurt because I’m not expecting a lot, but sh!t it’s a birthday and I really thought she won’t missed it.

How you guys will take this? Am i wrong being hurt?