Hmm... I had a look at that part of the code, but the solution might be more complex. Here's how it looks for me:
We can see that the problem is at the 「愛の力」 line, but it's unclear why the line didn't break at the end of the sentence, at the しかし、愛 part. Even if there's a rule saying that a linebreak can't occur at a 「 or 」, the end of the line should be unaffected by that, if I'm not mistaken.