The way you said it in the question is fine.
yes miss beautiful = ja Fräulein Wunderschön
It most likely means that he doesn't miss you that much.
Yes, but it depends how you say it. If you imply I miss you because I love you then no. If you imply I miss your friendship or I miss having you around as a friend then that's fine.
As a guy myself, I would say yes, if he asked you if you miss him.
yes karotelem! Yes kez karotum em (present tense, as in 'I am missing you') Yes kez karotel em (as in I miss you)
miss kita - is how you say i miss you in tagalog
Si, te extraño.
Yes, but it would be better to just say "misses"
To say "I miss him" in Swahili, you would say "Ninam-miss."
To say "I miss you" in Igbo, you would say "Achorom ikpo gi."
Yes.
Sí señora, yo sé