I think you'd be better off looking for a swinger community to discuss your issues. You're only focused on sex, it seems, and polyamory is more than that. I also want to point out how disrespectful it is to keep harping on your wife to "get a girlfriend" for your own prurient interests. I suggest you start working on your marriage before doing anything.
Oh, and yeah, women don't need your dick to rescue them.