What is my friends deal?

Ok, I have this friend. I liked her, but I was never going to ask her out. She already assumed I liked her and said she just wanted to be friends out of nowhere. I was like, cool; I was never going to ask you out anyway. Well, I said that In my head. She would do sweet things for me, like check up on me last year when I was in the hospital. I would give her money when she needed it, etc. Lately, I've been kind of distant and been wanting a girlfriend, but every time I would say that, she would laugh. Like why? The last time she laughed, I showed her my date, and she was shocked. But I didn't like the girl I went on a date with. Now my friend keeps asking me about my kids and their mom; she constantly responds to anything negative on my social media post, and she seems like she's mean. She randomly texted me out of nowhere and said she was going on a date with someone and wanted advice. I didn't even give her my genuine advice; I was just saying nice things, and she got mad at me. I'm so confused with this girl. She keeps doing weird things to me. Is she a jerk, or am I missing something?
What is my friends deal?
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