"Huh? I.. It's just the truth!" Not that she isn't glad that he's apparently happy to hear that. Ignis being happy is always good, he deserves to be happy all the time for how much work he's always putting into the team. But she's just stating the truth here. Ignis does have a lot of good qualities.

"Besides.."

She pauses for a moment, but then suddenly quickly shakes her head. She's trying to pull herself together here, since it takes a lot of effort on Madoka's part before she can be even slightly bold. And she knows she has to be bold here in order to make a point here. Ignis deserves to know how much he's appreciated!

"I-- I of course care for you too, mister Ignis! You're always so nice to all of us, and taking care of us.. Especially me." Since she knows she needs the most looking after out of the blue team. But that's not something she's voicing out loud - this is a moment of appreciation for him, not a moment of external self-depreciation. "While I'm here, you're really important to me too! A.. And I'm sure a lot of people think that about you."

At the very least their whole team. Because really, who can't like Ignis.