The response from your neighbor could be perceived as straightforward and direct, but whether it's considered rude depends on the context and the tone in which it was delivered. Without knowing the exact tone and manner in which your neighbor said it, it's challenging to determine if it was intentionally rude or just a matter-of-fact statement.
People may have various reasons for not allowing others to use their appliances, such as concerns about potential damage, utility costs, or personal boundaries. If your neighbor has had negative experiences with sharing appliances in the past, she might have been more cautious in her response.
It's essential to consider the dynamics of your relationship with your neighbor and the overall context of the conversation. If you have a good rapport with your neighbor, it's possible that she was just being honest and straightforward about her preference not to share her dryer.
In any case, if your dryer is not working correctly, it's a good idea to get it repaired or replaced to avoid inconvenience and potential safety hazards. If you feel comfortable discussing the matter with your neighbor, you could express your understanding and let her know you'll take care of the issue with your dryer as soon as possible.