For
It shows respect and brings closeness.
Against
Love should not come with language exams.
Anonymous excerpts, translated where noted.
“I learn my significant other's native language as a sign of respect.”
“Having a partner who speaks your target language can be an incredible advantage because you get consistent exposure and real-life conversations.”
“I don't think it's disrespectful. My ex and I have different native languages and English was enough for both of us.”
“It's nice and easier for all concerned if they do, but it's not disrespectful if they don't.”