Yes, saying "Don't wait for me" can indeed be a passive-aggressive way of expressing disinterest or a lack of commitment. It implies that the person is not interested in pursuing a relationship or connection and is indirectly communicating that they do not want the other person to hold any expectations of them being available or involved.
In some cases, the individual might be trying to avoid direct confrontation or rejection by using passive-aggressive language. Instead of clearly stating their feelings or intentions, they use ambiguous phrases like "Don't wait for me" to create distance without explicitly ending the relationship or friendship.
While it's essential to consider the context and the individual's communication style, in many cases, such a statement can be a subtle way of indicating disinterest or a desire to end the relationship without having to address the issue directly. If you find yourself in such a situation, it's best to respect their wishes and focus on your own well-being and personal growth. It's essential to surround yourself with people who value and appreciate you, rather than waiting on someone who is not interested in being a part of your life.