> Is it possible to accept that and remain monogamous?
I think this is something very personal and varies from person to person. To some sex in a long-term relationship is important, to some it isn't. Some hop from partner to partner, some stay committed for decades. There's probably not a one-size-fits-all and there doesn't have to be.
Is it possible to accept that and remain monogamous?
Because for many, when one is bored with their current partner, passionate sex is just an affair away.