[Well now between his eyebrow raise and his reply, she's just blushing a little. And praying he's not going to notice that. She wishes she'd just decided to choke on her tea instead of try to retaliate.]

It's not uncomfortable. [Lies.] He's just my best friend. [Only just] So of course, I love him. But it's sort of a complicated word, "love". Sort of a lot of implications to... work through.

[A+ arguing there Clara! She's just going to sink into a chair and blow her nose.]