While I don't have the full context of the conversation, I can offer some insights.
Calling spending time with someone "exhausting" can come across as rude or insensitive, especially if it's not delivered with the right tone or context. It may make you feel unimportant or burdensome, which can be hurtful, especially when it comes from a parent or someone close to you.
However, it's crucial to consider the intent behind your mom's statement. She might not have meant to be rude, but rather expressing her feelings of fatigue or stress related to other aspects of her life. It's possible that she didn't choose her words carefully and didn't intend to hurt you.
Communication is essential in situations like this. If her comment has affected you, consider having an open and honest conversation with your mom. Express your feelings calmly and let her know how her words made you feel. By doing so, you can create an opportunity for understanding and potentially resolve any misunderstandings.
In any relationship, it's essential to be mindful of our words and how they can impact others. Kindness and empathy in communication can go a long way in maintaining healthy and loving relationships.