Poor Choices...

Anyone ever regret your past choices. My senior year of high school me and my girlfriend broke up. I was a horny 18 year old with no outlet. There was one girl in school with a reputation as being easy. Well I asked her out. She said yes, but surprised me when she got directly to the point. She simply told me to come to her house that evening. She met me at the door, took my hand and walked me past her mom with a quick intro. We went into her bedroom and she turned on some music and started taking off her clothes. The sex was great.
Anyway me and her started hanging out quite a bit. And we got along well. I admit I really liked her. We were having a lot of sex. But on the other hand I wasn't the only one. She was still fucking other guys as well.
As we graduated I was pretty much seeking a relationship with her. She reciprocated feeling for me as well but made it clear the relationship would be unique. She wanted to be a couple with a commitment but still have an open relationship and have sex with others. She made it sound great. She expressed fantasies of us having 3sums, attending sex parties, basically anything goes. She said she would fulfil all my sexual needs and fantasies.
Well i wasn't very bright. I wanted her all to myself and wanted her to become that nice girl next door. So I broke up with her. Ended up finding a girl like good old mom.
Here I am 12 years later with 2 kids and a wife that thinks sex once a month is too much. I now regret passing up on the sexual adventure of a lifetime. So many things we could have done and experienced.