The phrase "a real affection for" is correct and usable in written English.
You can use it to express genuine feelings of love or fondness towards someone or something.
Example: "She has a real affection for animals, often volunteering at the local shelter."
Alternatives: "a genuine love for" or "a deep fondness for".
"Underneath, there is a real affection for each other," Mr. Reilly said.
So this was altogether a very interesting time, and I developed a real affection for him".
But it's also, he says, because he feels a real affection for his character.
I had grown a real affection for this taciturn group of morris vets over the last six months.
"I have a real affection for Mario," said Zola. "I do care about him and when he came on he caused us so many problems.
(Isherwood) * 'APARTMENT 3A' Jeff Daniels's romance about a woman who lost her faith is written with wit, conviction and a real affection for its characters (1 30).
I've always found it hard to get past that whistling sibilance on every "s" that Damon Albarn pronounces, and it stood in the way of me ever having any real affection for Blur.
And yet Mr. Taylor also uses scores that he seems to find ridiculously minor (the orchestrated collage of elevator music in "Lost, Found and Lost" is this year's worst offender) or that he exploits theatrically without showing any real affection for (Grofé's "Grand Canyon Suite" in the 2012 "To Make Crops Grow"; excerpts from Smetana's "Bartered Bride" in "Gossamer Gallants").
Bjorn Borg, Federer's idol whose five Wimbledon titles on the spin has now been equalled by the Swiss player, has a real affection and admiration for the modern phenomenon and they embraced beneath the club's roll of honour minutes after this contest.
London being the place I have had a very real affection for since I was a child.
"It's because of a real affection and affinity I have for the city of Detroit, which was cultivated in many ways by my late father-in-law, Max Fisher.
