I would call them Konstantin and Viktoria, that way you will use both family names, if you don't like Victoria for a girl, maybe you can go for Yelena or Yulia, they're both lovely names

wife is like katya and maya, but both are lady names who i knew.
knew like girlfrend? is weerd.
I likeed ideia of Konstantin for baby boy and Anya for little girl, thuohg. I ask wife, but she did say NO! and i say why and she say not likename Anya, so I say I not like Konstantin and that he is dirty old man who has only good thing done was birth her, and shold have staied to fight the fascists instead of running to angland like little girl, like my father.
she get very angry but i calm her down.
so i need some help. but thank you for help you have given so far! is helpful!

for letters, I like V, S, D.

First of all you should not let a thing like this make you fight with your wife, secondly as you can't seem to agree on either boy or girl names I would go for 2 different names that do not have anything to do with family tradition, and that way your babies will have a fresh identity, here are some russian names with the letters you said you like:

Girls:

Darya, Dahlia, Damaris, Dasha

Sofiya, Sacha, Seryeshka, Stalina, Snezhana, Stasja, Sveta, Svetlana

Valeriya, Vladislava, Vera

Boys:

Dimah, Dimitri

Sergei, Seryoga

Vadik, Vadim, Vikenti, Vlad.

Russian names are not very easy to suggest, but tell me if you like any of them

Vadim
Vasily
Vitaly
Vlad
Daniil
Denis
Dmitry
Sergei
Stepan
Spartak
david

A few more choices.Sorry if I repeated any

i am liking Sergai and Vasily.
Dima and Vadik is good too.
wife is say Vasily, so we go with that for baby boy.