What do you think about non-monogamous relationships? Are you in one, or have you ever been in one?

So, I met a nice guy. At the end of our first date, he told me he had a steady boyfriend but they have a non-monogamous relationship. I haven’t completely processed it yet. I’m not sure how to proceed, and I thought maybe some fellow jellies could give their insight. I can think of some pros; some cons. A “pro” would be no worries about cheating, which I’ve both been a victim of and have sometimes perpetrated. Everything is on the table, meaning his boyfriend knew about the date, and a subsequent date thereafter. So, I can still “play the field”. Also, it’s a bit ideal, as I don’t feel like great boyfriend material right now.

Having said that, the cons are relatively substantial. My primary concern is being used for sex. That’s not okay! I’m not really into sex for the sake of sex right now, and would prefer something deeper. So, I’m at a roadblock. Jellies: I look forward to any insight! Are you in a relationship like this? Formerly? Contemplated it? I look forward to any feedback, whether heterosexual or gay, and all those in between.