The phrase "affection so that" is correct and usable in written English.
It can be used to indicate a purpose or reason related to expressing or demonstrating affection.
Example: "She showed her affection so that he would feel more comfortable in the new environment."
Alternatives: "love in order to" or "fondness so as to".
They're also famous for their public displays of affection, so much so that we've made an Obama PDA Big News page.
"I have a very strong affection for my dad, so that was sort of an easy part to play," says Kwanten. "I got to hear what Richard Roxburgh had done with the voice of my father and that was so good.
Many of Mrs. Kennedy's children participated in the film, telling stories about their mother to the camera with wry, oh-that-Mummy affection: So many cabinet secretaries were pushed into the pool at her parties at Hickory Hill, the family's house in Virginia, that Uncle Jack (President Kennedy) intervened and told his prank-loving sister-in-law to stop.
The head of the printing-works-owners' union said that the country already has "various days to honour kindness, love and affection," so needn't honor a holiday that encourages "the spread of Western culture".
So that, by means of this reflected sense, there arises another kind of affection towards those very affections themselves, which have been already felt, and are now become the subject of a new liking or dislike" (C 172).
Very little happens between Dorothy and Solomon; there is a daunting modesty both in the characters themselves and in the novel's portrait of affections so tentative that they barely coalesce into friendship.
Though passion may have strained, it must not break our bonds of affection…" so that all might be "touched by the better angels of our nature".
Weights were assigned separately for carriers of mutations in BRCA1 and BRCA2, by age (<25, 25 29, 30 34, 35 39, 40 44, 45 49, 50 54, 55 59, 60 64, 65 69, ⩾70) and affection status, so that the weighted observed incidences in the sample agreed with established estimates for mutation carriers (Antoniou et al, 2003).
Be steady with your signs of love or affection, enough so that she doesn't forget how much you mean to her, but not so much that the power of the words gets watered down.
It's a tribute to Moody's enthusiasm for his subjects that his affections so often overcome his affectations.
