Usually people spell it as "Dmitri"... And yes, if you like it. It's Russian, so if you are a Russian family, go for it! :)
In Russian, "Любимая" is how to say/spell sweetheart.
В is at in Russian.
да in the Russian language, or "da" is how you spell it in English
'And' in Russian is spelled 'u'.
The name for the Italian or Sicilian form of family criminal group is the "Mafia". Mafiya is the common transliteration for the Russian Mafia (Russian: Русская мафия, Russkaya mafiya)
Папа is dad in Russian.
Винтовка is rifle in Russian.
Tranquility in Russian is "спокойствие."
Henry in Russian is spelled as "Генри" (pronounced as Gen-ree).
Кэти is Kathy in Russian.
In Russian, "no" is spelled "нет" (pronounced as "nyet").