I’m looking for some advice

Last night my wife and I talked, a lot. I know sex has never really been important to her, but I never knew how much. She told me last night and this morning when we talked more that in her past relationships she only had sex as much as she did because she thought she had to and if it wasn’t for that, she didn’t need it. She had an unwanted introduction to sex when she was young which she thinks plays a part in her attitude towards sex. She knows I have a much higher sex drive than her and am into more kinky things than she is. She told me this morning that she is serious about me finding someone else to have sex with and explore with as long as I always come back to her, she said there would be hard ground rules and boundaries, but she knows I have more needs than she can provide. I don’t know if that’s something I would even want to try. I’m looking for anyone who may be or have been in a similar situation, or just any advice anyone might have. Thanks in advance!