your wanting is the issue. equanimity you must have (in Yoda's voice). No seriously. You must develop a process and stick to it, the girl does not matter, the process does. My process is i take the number, i send the first message, if she responds good game on, if she doesn't i move on, no double texting. Second step i chat lightly, if she is the type that needs warming up fine i'll do some text flirting if i'm attracted enough. Then I make plans, i only offer twice, then i stop. If i feel there really is an issue there (and she is hot enough) i might try a third time. If not i soft next or hard next, my investment amount immediately drops to zero or near zero. It's annoying and sometimes you are tempted to think if only i tried hard enough or long enough, but no. You want a relationship/sex on your terms not hers. It's like sales, it's about volume. And for some chicks, it might hurt when you get involved with them, but you must be prepared to let them go if needed. Don't forget you're the main character and she's here in a support role.

Your plans never align because she's not clearing her schedule for you. That's why.

Move on to the next. She sounds like she's dripping you for validation and not in the kind of way that us guys on here tout. It's not sexual validation, drop her

Is she using me for plans?

Yes.

Brother. She is talking to thirty other guys. She's not that into you. You are her entertainment when convenient, but she isn't excited about your game. She doesn't care about the shit you post for validation on social media. If a girl is into you, she'll find a way to meet you the same day.