I think the answer depends on the couple and what the cuck can handle mentally and emotionally. Some couples get closer from this style of life/relationship but some are destroyed. I believe the ones that are destroyed, the wife moves on happily with her new guy while the cuck’s world basically ends and he has to start over hunting a new partner.
For me, I’d like my wife to have a boyfriend/bull and pretty much her pussy be exclusive to him. I’d be allowed to eat and clean when they were finished, when she came home or whatever. I wouldn’t be allowed to put my little pecker in her though, only allowed to jerk off beside her while we lived on each other and she told me the details of what they did. I’d only be allowed to fuck her on special occasions like my birthday, holidays like Christmas and our anniversary. That would be kinda hot to me, I believe.
But I do agree… the cuck shouldn’t be left out and denied contact with his wife. He should be able to get into her and feel where a bigger and satisfying cock has been.