Translation:Will my boyfriend miss me, when I am gone?
I have a feeling this translation is WRONG. Kæreste can also be translated to partner, since Danish has a neutral gender way of saying boyfriend and girlfriend.
When I typed in partner (since you cannot know the gender in Danish before hand, unless it is specified elsewhere in the sentence), I got a wrong translation.
If you encounter a bug you can report it here: https://support.duolingo.com/hc/en-us/requests/new. The sentence discussions is a bad place to do it as no one who can fix the problems reads through them.
If you submit a bug report consider adding screenshots as it makes it easier for those who works to hammer out kinks in the systems.