"I - yeah," Harry said, his hand tightening around hers in return. "I do care about you, Ginny. I don't know exactly how I feel because I haven't really - there's so much else I'm thinking and feeling right now, so I don't really - but it all gets easier around you. With you."
There, that was the truth. Probably more what she wanted to hear than simply 'I'll fight for you', which could mean just about anything, especially since he was fighting anyway. He just - he had never really had a chance to think about being in love with anyone, hadn't even thought about liking anyone in years. Yes, he'd kissed Ginny, and yes, he wanted to do it again, liked the idea of being able to do it more once they were both free to see each other whenever they wanted to. If that was love, then he supposed he loved her, but he was afraid of saying it until he knew for sure.