What is slept with someone else before official?

"Slept with someone else before official" is a phrase usually used to describe a situation where two people have been seeing each other casually, but have not yet made their relationship official, and one person has had sexual contact with someone else outside of the relationship.

This situation can create a lot of tension and hurt feelings for both parties involved, as different people have different expectations and boundaries when it comes to casual dating and exclusivity.

It is important to have open and honest communication with your partner about your expectations and boundaries in a relationship, as well as to have a mutual agreement on when a relationship becomes official. It is also important to practice safe sex and prioritize your own personal values and well-being.