are you reading and researching while you wait? Especially with jealousy, books on non-monogamy can be very helpful. I feel "the ethical slut" has a great chapter on jealousy, also morethantwo.com has great articles too. if its what you really want, get educated and bring it back up when you think you can. There are always reasons not to,but it becomes difficult to ignore your own needs.
It might just be me, but ive never felt regret being with my boyfriend sexually because im married to someone else, especially knowing that J knows way lays any guilt. If you feel you have some moral compass to overcome, thats something you can do by researching for your own self discovery. I came to poly by realizing i just wanted more, i love more, i want to be physical more, we dealt with all the baggage as it came
keep on keeping on