Severus wanted to believe Lily so much that he let down he guard a little. "Maybe we can try to forget about them." He really didn't feel like talking about those Gryffindors and definitely didn't feel like mentioning their names. Part of him was still worrying about getting hurt again, but for now the need of friendship was a little stronger.
In an effort to change the topic he looked at the books Lily was carrying. "What were you studying?"