My friend is mad at me because I didn't do anything special for her birthday. We've only been friends for a year and I'm not doing well financially

I met her in prenatal class and for my birthday, she just gave me a card, which is fine. We'd only known each other a few months at that point. Usually, I am not a gift person and she knows I am struggling financially at the moment.

It was her birthday yesterday. I asked if I could drop by and she said sure, come any time I'm home all day. I said I'd be by at 1. I dropped by to drop off her card and a drink from Starbucks, but she wasn't home. I texted her and she said she was out with friends and didn't know when she'd be home. I was a bit put off because we'd agreed that 1pm worked, and I drove out and bought Starbucks only for her not to be there.

Today she texted me that she was upset that one, I didn't even make an effort to stop by on her birthday and two, I didn't make any effort to go out when she said she was going out with friends.

I said I'm sorry that she felt that way (which she told me sounded dismissive). I reminded her that I did drop by yesterday, but she wasn't home. She said "Yeah, and I texted you that I was out with friends." I said I understood that and it's fine, but I had stopped at Starbucks for her and I didn't think it was fair that she was saying I didn't make any effort to stop by. I also wasn't invited out. She said "I told you I was out with friends. That was literally your invite."

She then got mad that "all you got me was a card and a drink from Starbucks. A drink that I didn't get. Are you for real?"

I said that I could understand that she was upset but I did make an effort to stop by, she was out with friends and I was not invited. That's not on me in any way!

So it blew up into this whole thing and I said "I'm sorry you feel this way but I think we're going to have to take some time and space apart." She told me she never wanted to see me again. I said that's fine.

Like ... Am I missing something here? None of the other ladies invited me to lunch. Saying "I'm out with friends and I don't know when I'll be back" is not an invite.