He was slightly mollified when Cass said he knew Harry wouldn't judge him for that. Anyone who thought that about him had to be out of their minds.
Wanting to ask why Cass felt like he had to live a lie Harry forced himself to stay silent, it seemed like Cass was trying to think of what to say next.
He was glad he had at Cass's next words. "The protecting thing I can understand." Harry told him. Afterall wasn't that why few knew about his relationship with Pansy? "I may not like it much but I think I can understand why you did."
Harry didn't bother commenting about the keeping her safe. He knew nothing could take away that kind of guilt.