I wasn't getting enough sex with my steady partner.

I wanted to prove to myself that I was sexy.

I was given the perfect opportunity.

I was having a midlife crisis.

I didn't love my partner.

I felt the need for more experience.

I needed an escape from regular, boring life.

I temporarily lost my sanity.

My partner had an affair first.

Other

I have never been unfaithful to my partner.

I have never had a partner.

I wasn't getting enough sex with my steady partner.

I wanted to prove to myself that I was sexy.

I was given the perfect opportunity.

I was having a midlife crisis.

I didn't love my partner.

I felt the need for more experience.

I needed an escape from regular, boring life.

I temporarily lost my sanity.

My partner had an affair first.

Other

I have never been unfaithful to my partner.

I have never had a partner.