There are two things that fascinate Lisa with her classmate who she now considers her friend. First, since the woman worked, she chose to live alone in the apartment. And secondly, her eagle eye and desire to gossip is very high, even higher than Lisa's desire to hunt for a job.
Lisa was stunned to hear Vira's blunt question. If she could guess, she must have come home from work earlier and chose to watch her from behind her apartment's window!
'You gossip-hungry woman!'
"Good grief, Vira," Lisa replied, shaking her head, "After the interview, I went with my friend. He insisted on taking me home, but I was reluctant. Then he insisted so that's why I went home with him. You don't have to think about it anymore, just go to sleep."
Lisa didn't want Vira or anyone else to know that the man who had brought her home earlier was Oscar. She just wanted to confirm that she had gone with her friend and then came back together. Nothing more.