Well, nothing is capitalized.
The word <em>we </em>is the subject. The phrase <em>solemn vigil </em>is the direct object. The phrase <em>at the funeral </em>is adverbial modifier.
I believe that they have a great relationship. George has taken care of Lennie for a while now and they do things like travel and work together.
Hope this helps✨❤️
Also, Merry Christmas!!