You ARE in one of those tough spots…you are married, so clearly the route of complete abstinence is difficult, yet you and your spouse have perhaps determined that even NFP does not meet your circumstances, since you cannot have more children right now.
I would like to personally assure you (via experience) that total abstinence can be done. It, uh, isn’t fun though. However, it produces a huge change of perspective, and that isn’t bad.
I agree, the stuck feeling is truly there. Many people would see it as impossible to suspend relations with their spouse lest they end up divorced, for example. It all depends. I’ve felt stuck before, but not on the identical set of horns. Have you tried talking this out with a priest?
I’ve wondered about married couples from the past as well, just what went through their heads and all. Do you feel that the Holy Spirit is behind the rules at all? He does know our hearts and struggles for sure.
I don’t know why I asked so many questions, just, I guess I understand about being stuck and I wish I could help. But I know, only the HS can help, really.