Russian sayings?

Travel Info
I have a pen pal in Moscow who I would like to write some enduring words to. How would you say " my lovely" or any other nice sweet things I can say to her in Russian.
Thank you all for the help.

Travel Tips

屑芯褟谢褞斜懈屑邪褟 - my lovely
or
泻褉邪褋芯褌泻邪, 蟹芯谢芯褌芯, 褋械褉写褑械, 卸懈蟹薪懈, 褋芯谢薪褘褕泻邪...
Others

vodka, vodka and vodka.
屑芯褟褏芯褉芯褕邪褟 (moya horoshaya) - my good one
屑芯褟泻褉邪褋懈胁邪褟 (moya krasivaya) - my beautiful one
屑芯褟谢褞斜懈屑邪褟 (moya liubimaya) - my beloved
Do you want it in Russian i.e. Cyrillic Lettering or in phonetic English?

which begs the question, if he/she is a pen-pal, presumably you are corresponding in English. Why don't you teach him/her some Americanism, like "You're the Bomb."

My Russian coworker says, "Da Raw Goy."