My Wife Is 31 Years Old. We Are Married For

my wife is 31 years old. We are married for past 5 years. We have 1 child and lost full term baby recently. My wife has a problem of excessive talking. She talks continuously recollecting past petty small arguments between us. She recollects time and again same old arguments and utters the same old words or sentences. It is her daily routine. She starts discussion without anyone asking her any question. Either she quarrels or tries to talk explaining something which anyone doesn't ask for. I mean we feel the topic she raises irrelevant and unsuitable for that particular period.