[No, no, Sayo, don't feel guilty! Really, it's totally his fault for being gone for four years.]

Oh, um, please don't worry about it. We probably hadn't spoken very often, in any case. And I was gone for a while. [Except now he's put two and two together and remembered about the jam and wow, he feels so sorry for her that it hurts.]

S-So why don't I just say that it's nice to meet you?