So what does this mean?

I have/had this friend. Known her for 5+ years. Kinda a one sided friendship. I was going through the worst depression that started in October. Like very bad suicidal ideation and dissociation. She never checked up on me despite being kinda vocal about it.

Anyway.

It’s been months since we’ve talked. NOTHING has happened that I know of.. just kinda radio silence. But she wished my dad a happy birthday in December. Then, our mutual good friend’s birthday was Monday, she told her happy birthday. My birthday was Wednesday and I got NOTHING. My dad made an Instagram post about me and wished me happy birthday, and she liked it?

I personally think it’s petty as hell of her to do this. We’re in our 20s and I feel as if she’s being childish. And just really insensitive. I literally spent $150 dollars on her for her birthday..

Am I wrong to feel this way?