What to say when she asks what you want from this

She's asking because the conversation has momentum and she wants to know if it's worth continuing. If you've been texting for days without clarity, she's probably felt the uncertainty build. She's not asking to test you. She's asking because she's starting to feel something and needs to know if you're on the same page before she invests more. The specificity of the question also tells you what she's worried about. If she says 'what are you looking for' instead of 'do you like me', she's thinking bigger picture, not just about whether you're attracted to her.

First, it has to be honest about what you actually want right now. Don't say you want a relationship if you want to take it slow. Don't say casual if you're hoping for something more. She will figure it out eventually, and when she does, she'll feel lied to. Second, your reply has to acknowledge her in it. Show that you're thinking about her as a person, not just answering a generic interview question. A line about what you see in her, or why this feels different, does that work without being corny.

Reply within an hour or two maximum. The longer you wait, the more she convinces herself you're dodging. You don't need a perfect answer. A clear, brief, honest one beats a polished one that took three hours. If she doesn't respond after you answer honestly, that usually means your answer wasn't what she wanted. Don't follow up immediately. Give it a day. If nothing comes back after that, she's moved on and trying to convince her otherwise wastes your energy.