Reply when she says I think you're trying to play me right now

Almost always this line follows an inconsistency she has actually felt. The most common version is warmth followed by withdrawal: you message a lot, then you go quiet, then you return with the same energy as before. From her side that looks like someone who is turning attention on and off to keep her guessing. Sometimes it is a specific move, like saying you want to see her and then not making a plan, or pushing for a date after she said no. Work out which of these happened before you reply, because the answer changes what you need to own.

The word "play" is doing a lot of work. She is not saying you're a bad person. She is saying she can't tell what your interest is, and she is worried she will be the one who gets hurt by guessing wrong. That is a fair concern to address directly. If you treat it as an accusation to deflect, you confirm the thing she is worried about.

The reply should answer her question first and ask about her second. Once you've said plainly what you are doing and what you want, asking how she feels about it is natural and reads as respectful. If you lead with curiosity, she will hear it as a way of avoiding your answer. Name the one thing you were doing, state your actual intention in one clear line, and then stop. A reply that is short and direct tends to do more work than a long one, because length gives her more places to find an excuse to disagree.

Do not defend your timing with a list of reasons. One honest sentence about why you went quiet, if you can give one, is enough. If the honest reason is that you got unsure about her, say that. Admitting uncertainty is far more believable than a neat explanation.

Send the reply when you can be calm and not when you feel the need to fix it. A message sent late at night after several drinks tends to be either too long or too eager, and both read as the very game she is worried about. A reply sent a few hours after she messages, once you've thought about what you want to say, usually lands better than an instant one. If the conversation has been heated, one clear message is better than a back and forth at speed.

If she doesn't respond, leave it. One message is the right amount of follow-up after this kind of text. If you send a second one asking whether she got it, or a third with a joke to lighten things, you are doing the exact behavior she named. If she replies warmly, match her energy. If she replies coolly or not at all, accept that as her answer for now and let the conversation rest.