Sunlight in the winter, partial shade to full sun in summer.
Water when dry.
Fertilize according to directions. I use African Violet fertilizer which is balanced and is what I have.
A carefree plant if it gets plenty of sunlight and isn't kept too wet.
Doesn't like shady places except in full summer nor does it care for soggy soil.

serg... if you looked at the posts in this forum ... you should feel very lucky.. that lucky happened to stroll thru to answer your question ... as there hasnt been much other activity for months ...

you might want to try the perennial forum ... for other ideas.. more suited to your zone ...

in my z5 MI .. they HAVE TO BE brought in for winter ... as perhaps you already did ...

i never got one to live indoors ... so i wont be any help ... lol .. usually they got so ugly by mid winter.. i put them out of my misery .... and chucked them out the back door into 3 feet of snow .... i am telling you this.. so you can prep girlfriend as to what it might end up looking like ... rather than blame you.. for not loving it enough ....

one thing for sure.. it will not 'thrive' over winter... indoors... all you are trying to do.. is get it to live.. so you can juice it.. come next spring ....

and i would NOT fert it ... in a semi-dormant situation ....but see above.. lol

ken