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)
"Как ты?" is how you spell "How are you?" in Russian.
In Russian, "Caitlin" can be spelled as "Кейтлин."
Винтовка is rifle in Russian.
Папа is dad in Russian.
Tranquility in Russian is "спокойствие."
Кэти is Kathy in Russian.