Talking to your partner about your ex is typically not the most fun part of any new or newish relationship, but being honest about the parts of your previous relationship that you can be honest about can be a good idea. Still, there are things you should never tell your partner about your ex for a variety of reasons. Betraying the confidence of your ex or telling your partner things that they don't actually need to know and will likely only hurt them unnecessarily aren't things that you should be doing or sharing with your partner. It's not fair to your ex or your current partner. Honesty is important, but so is what you choose to say and how you choose to say it.
"Of course they had attractive qualities — you dated them for a reason — but the relationship also ended for a reason and it’s really important to keep that as part of the conversation," Erin C. Parisi, LMHC, CAP, a licensed mental health counselor and certified addictions professional, tells Romper by email. "Sharing why you broke up is helpful to share, and can demonstrate to a new partner some of your own personal growth."
Just as there are things that you should tell your partner about your ex, there are also things that you just shouldn't. Knowing what you shouldn't tell them can keep you from hurting your current partner or betraying your ex for no reason at all.