How to reply when she won't commit but treats you as taken

She's doing girlfriend things. Consistent, initiating, including you in future plans, acting jealous or protective. Then when you name it, she rejects the frame. This isn't confusion on her part. She knows what she's doing.

She might believe she doesn't like labels while still wanting the benefits of commitment. She might be keeping her options open in case something better appears. She might fear that naming it makes it real and breakable. None of those are your problem to solve. What matters is that she's getting what she wants (intimacy, consistency, you) while you're getting ambiguity. That imbalance is what your reply needs to address.

Good replies point out the gap in a factual way, not an accusatory way. You're not saying 'you're stringing me along.' You're saying 'this looks like X but you're calling it Y, and I need to understand which one it actually is.'

The move is to describe what you observe, then ask a direct question that forces a real answer. Skip the justification. Skip asking her why she feels that way. Just say what you see and what you need. This works because it's hard to wiggle out of your own behavior when someone names it calmly.

Send your reply and then stop. Don't follow up for at least a few days. If she doesn't reply or gives you more vague stuff, that's your answer. She's chosen the current setup because it works for her.

If she does reply with real clarity, believe what she says. If she says she's not ready for a label, that means don't act like you're together and don't make future plans with her. If she says she wants to be exclusive, then she's telling you what changed. After you get her answer, you decide if you can live with it. Don't negotiate from a place of hoping she'll change. Either accept where she is or step back.