Task: Question Answering
Input (English): Passage: Tara is a wife to Mark and a stay-at-home mother to two children, Teddy and Florrie. Tara goes to a nearby park and seems upset. There is a passage of time.
Tara and Mark are asleep in bed, when they are woken by a phone call. Tara resignedly has sex with Mark, during which she is in tears, unknowingly to Mark. She helps Mark get ready for work, and takes the children to school. When she leaves the school she stops and stands outside, in distress. The following Saturday morning Tara wakes up early, trying not to wake up Mark. He does wake up and she reluctantly engages in sex with him, again in distress unnoticed by Mark. Following a visit to the park, Mark tries to have sex with her in one of the children's rooms, which she refuses. Mark questions whether she's having an affair which she denies and they argue. Later they're having a BBQ with friends and Mark berates her for not providing drinks for the guests. That evening they are having sex again, and Tara again is crying and in distress. Afterwards she repeatedly whispers that she is not happy, and after some brief discussion with Mark she says she's going to sleep. There is a passage of time. 
Question: Who is in tears during sex?
Output (English): Tara.