The phrase "affectionate manner" is correct and usable in written English.
It can be used to describe the way someone expresses love or fondness towards another person, often in a warm or tender way.
Example: "She spoke to her dog in an affectionate manner, showering it with love and praise."
Alternatives: "loving way" or "tender approach".
One of them wakes to find his sleeping companion embracing him "in the most loving and affectionate manner".
People feel tremendous loyalty to a channel that covers their local news in an accurate and affectionate manner.
It is the consistency and clarity of her voice that I love, her witty, unsentimental and affectionate manner of describing the world.
It's informative and not uncritical, touching as it does in an affectionate manner on her authoritarian personality and her somewhat cavalier attitude towards matters of fact and the history of fashion.
In the morning, according to Ishmael's report in Moby-Dick, "I found Queequeg's arm thrown over me in the most loving and affectionate manner.
Spector stated, "She had captured the audience swiftly and effectively with her calm and affectionate manner", and promised that she would do the same for listeners of the album.
They place particular value on process quality in the form of an "affectionate", "friendly" manner of dealing with dementia patients.
He did hang out with and cultivate mobsters, real killers, though more in a semi-hostile, semi-affectionate fraternal manner than with the pitiful, feudal devotion pictured in "The Godfather".
"Korda's tone of voice is affectionate and urbane, his manner that of the accomplished raconteur who never spoils the story with a heavy-handed moral," Lewis Lapham wrote here last year.
And John Keating, as the canny but daft Detective Fix (and a host of other characters), also catches the tone of Verne's affectionate satire of British manners.
In poking affectionate fun at the manners and customs of a large, boisterous Greek-American family whose patriarch, Gus Michael Constantinee), is fiercely nationalistic, it celebrates the unquenchable vitality and passion of the Portokalos clan and its Greek traditions with a Zorba-like zest.
