Here are some red flags that may indicate trouble in a relationship:

Lack of communication: If you find that you're not able to have open and honest conversations with your partner, this could be a sign that there's a problem.

Insecurity: If your partner is constantly insecure or jealous, this can lead to distrust and control issues in the relationship.

Disrespect: If your partner is consistently rude or dismissive of you, it's important to address this behavior as it can be harmful to your self-esteem and the health of the relationship.