Nonchalant behavior in relationships can be detrimental as it often indicates a lack of care, interest, or emotional investment. Here are some examples:

1. Ignoring Communication: Not responding to texts, calls, or messages for an extended period without a valid reason.
2. Dismissing Concerns: Brushing off your partner’s concerns or problems without offering support or empathy.
3. Minimal Effort: Putting minimal effort into planning dates or special occasions, showing a lack of interest in making the relationship enjoyable.
4. Lack of Affection: Avoiding physical affection, such as hugs, kisses, or cuddling, when these were previously part of the relationship.
5. Indifference: Reacting with indifference to important news or events in your partner’s life.
6. Avoiding Conflict: Refusing to address relationship issues or engage in open and honest communication.
7. Prioritizing Others: Frequently prioritizing other people or activities over spending time with your partner.
8. Flakiness: Canceling plans or commitments last minute without a valid reason, making your partner feel unimportant.
9. Emotional Distance: Keeping emotional distance and not sharing thoughts, feelings, or concerns with your partner.
10. Lack of Support: Failing to provide emotional support or encouragement during challenging times.

It’s essential to address nonchalant behavior in a relationship through open and honest communication. It may be indicative of underlying issues that need to be resolved for a healthy and fulfilling relationship.