Do you think it's rude to get a message from someone but don't reply, yet you're online since you're updating your status? Are they being rude?

[Reipaca]

I'm typically the type that doesnt like to call out people for not replying or leaving u on seen cause we should just let everyone do what theyre comfortable with but ngl i would be annoyed as well
especially since its something urgent you need to decide on and she just needs to say yes or no
i dont really know either of you so i cant really judge but yeah she needs to just reply