I think it's a because every word has a subject and a verb
Myrtle is a very classy lady who wants the riches in life and wants somebody who can supply her with these wants and needs. Tom is the guy that can do this for her and more, compared to Wilson he is more put together and wealthier and therefore Myrtle is attracted to him.
Answer:
I'm not 100% sure but I think it's the third option: "It's okay to be an outsider; be your own person." I hope this helps!