맘이 짠했어.

A: My parents renewed their vows! 맘이 짠했어.
B: That is one of the most romantic things a couple can do!
A: They set it up to coincide with their golden anniversary.
B: Please pass along my utmost respect and well wishes.

A: 우리 부모님이 리마인드 웨딩을 했는데, It was so stirring.
B: 그건 부부가 할 수 있는 제일 로맨틱한 것 중의 하나지!
A: 게다가 금혼식 날짜에 맞춰서 하셨어.
B: 내가 정말 많이 존경한다고 안부 전해드려.

[Additional expressions]
*My parents renewed their vows!
– My parents got married again! / My mom and dad redid their vows!
*It was so stirring.
– It was a very emotional experience. / The whole thing was very moving. / It was touching.
*That is one of the most romantic things
– Among romantic events, that is ranked near the top of things
*a couple can do
– a couple can experience together / two people can do for each other
*They set it up
– They arranged it / They made all the plans / They prepared everything / They timed it
*coincide with their golden anniversary
– occur at the same time as their 50th wedding anniversary
*Please pass along my utmost respect and well wishes.
– Please give them my best wishes and regards.