Sue really does love Bob, despite the lawyers who have inserted themselves as her proclaimed representatives. She continues to try to get Bob's attention thru moments when the lawyers aren't as close to him (and they seem to be always within sight of Bob). She leaves little notes, she tries to signal with her eyes whenever Bob happens to actually have a better look at her, she asks friends to give both subtle and not-so-subtle suggestions to Bob that the lawyers are corrupt and not representing her at all.
Sue finally confronts Bob, and Bob is having trouble being sure that Sue is really Sue after all, because she is not like the Sue the lawyers have been explaining. Also, he thinks that maybe the lawyers know more about love than he does, for they are learned men, after all! They are confident, and adamant about how to approach Sue, and Bob is well, nobody special!
Yes, the real question is whether he really loves Sue or not and is willing to persevere toward her, because part of him has become so comfortable with just following lawyers' directions that doesn't want to risk being mistaken. Love never fails, and as Bob gets pushed to the point of frustration he finds his choices get narrowed to resolve to figure out the riddle wherever it goes, or just to resign himself to living with lawyers forever with Sue ever in the distant background.