Their not they are directly related the same issue why Sasha has chosen Dasha over Masha. When he first starting putting Dasha first I stated it then much to your chagrin. Sasha is pushing Masha out in favor of Dasha. You had the same old blah blah that doesn't really mean anything...
Look where they're at right now at this moment. Decisions have consequences and Masha is paying for them. She's lost Sasha her relationship of 7 years because she wanted to have her cake and eat it to. Dasha had never done anything to offend Sasha or his manhood and she has won this round.