I have always felt sorry and sad for the younger Yuko, she didn’t deserve this and who knows how far back this trauma goes. She had to survive through hell on her own using whatever means to get by. She probably really loved only one person during her innocence phase, her unrequited love Esemori (Nozoe), all other were just tools. Slowly her ways got amalgamated into her character itself with no real feelings and emotions left turning her into an abyss. She may love Reiji but i am not even sure of that.