Am I a whore/slut??

My husband and I have been married for 3 years. We have been a couple for 7 years though. He and I decided to have an open relationship about 2 months ago. My husband was my first everything. First date, first boyfriend, first kiss, first time having sex, everything. He dated a little bit before getting with me. We have rules and stuff set up to keep ourselves and relationship safe. I have now slept with a total of 8 men, which includes my husband.

I’m on birth control and condoms have been used every time and I’ve also been STD tested. All the same for my husband.

I met a man that I went to high school with a month ago however and things changed. My husband and I agreed to let me have a boyfriend I stood sleeping with other men. So I now have a boyfriend who lives with us. We all get along amazingly. We’ve had no issues so far. If my husband finds a girlfriend it will be the same for him.

It’s an odd and different relationship and situation, but it works for us and we are all very happy. When people find out though they immediately jump to calling me a slut or a whore. They’ve said some very awful things about me because of my relationship.

Am I a whore/slut for this?