Jemma reaches out, like she's going to rub Jessica's arm in comfort, but then thinks better of it. After being tortured for weeks, who wants a relative stranger touching them?

"It's what the Doctor does. He wants something, to know how you work, so he can use the abilities for himself." Jemma's not offering excuses, just wanting the poor girl to understand why it happened.

Most importantly, "I am so sorry." Jemma can't help but empathize with victims of the Doctor. "While I'm here, I'll do what I can, bring Fitz back."