This is just too close to my sitch. I love robx's advice BUT listen, when we were supposed to be in the last stretch of working on our marriage and my H started trying to make me jealous and was obviously connecting with other women, it made me panicked and insecure and hopeless and depressed. It did NOT have the desired effect and he was way too mesmerized by these hot, childless women who were doting on him. It is hype and it is very alluring...and once he got a taste of that freedom he was like a puppy being led by the scent of fresh meat.
No, if you are in this to make your marriage work, know your limitations. You are very sexually frustrated (reasonable) but decisions that impact your entire family should not be made based on that.