There's a possibility that the older partner is unconsciously preventing the younger companion from being who they truly are.
There could be an emotional development gap. The older person should also realize that their mental maturity may be far behind that of their younger partner.
Older partners may inadvertently belittle their partners. Living longer usually improves communication skills in partnerships with a large age gap.
Possibly no shared hobbies. Couples who are suitable improve each other's lives in a variety of ways.
Old-fashioned ideas may be dismissed by the younger spouse. Younger people should regard and admire older people's abilities, intellect, life experiences, successes, and endurance.
Younger partners may be more active. The younger partner should consider that their loved one may not have the same physical stamina and vitality as them and adjust some activities.
That may sound "ageist," but a sixty-two-year-old lady might struggle to get excited about skiing with a 35-year-old man.