"I haven't thought of Bathilda," he admits, brightening up a little bit. "I think she would support this, if I can explain how important it is. I was thinking... Well. In all honestly, mother, I was wondering if a marriage alliance wouldn't be the only way to go."

Obviously not with Bathilda, though she might want to suggest someone, if Harry can convince her to support his cause. He tries to focus on that, on possibly asking Bathilda to be a matchmaker, because it distracts him from the other thing - from just how much he doesn't really want to marry like this. He's not naive, of course, and he knows people do it all the time, but it leaves a bad taste in his mouth. It's one thing to arrange a marriage for long-term cooperation between two families, but when it's for a single cause, it feels... False, somehow. Brittle.