Not all cuckold marriages are the same. Sometimes, the cuck doesn't get to participate. Sometimes he has to follow his wife's strict rules.
There's usually a reason those rules get made, though.
Perhaps this cuck couldn't handle himself when his wife brought home a date. Perhaps he tried to act like he wasn't a cuck, like he was offended there was another man in his home, like his wife shouldn't have brought someone home.
More likely, though, the cuck got too excited. Maybe he tried to get involved when his wife just wanted to enjoy time with her date. Maybe he blew his load far too early and then got selfish and demanded his wife send her date home.
It happens sometimes and unfortunately there can be consequences for getting too excited as a cuck, especially if you forget your place once you've blown your load.
Remember, this is about her pleasure first and foremost. Your pleasure comes second to hers. You'll get to experience pleasure, of course, but only if you remember that hers is far more important.
If you forget that, you'll end up in the guest room when your wife brings a man home. You might be able to hear them fucking and you might be lucky enough to masturbate as you listen, but it won't be anywhere near as pleasurable as watching while someone else has sex with your wife.
Remember to be a good cuckold. Remember not to get too excited. Remember that it's about her pleasure before yours. Keep that in mind and she'll ensure that you get to experience every bit of pleasure that you crave.