Alice has been married to Bert for 33 years

Alice has been married to Bert for 33 years. They seem to love each other; enjoy the company of each other; and enjoy their life together. Bert is the youngest in his family. Whenever Alice and Bert are at Bert's family get-together, Bert's mother calls him "her surprise baby". His siblings look at him as an interloper. Alice wants to limit the contacts with Bet's family because she feels they will never change. Bert does not want to cut off contact with his family but has taken notice of the expression and the feelings. Why does Bert's mother use that expression? What should Alice do? What should Bert do? Neither wants to hurt anyone. You must write a 100 word analysis