Street Credits: Love X War 2

Sequel to Street Credits:Love X War
If you don't read the first book you'll be confused about this book.

Marco and Aliyah are now happily married with a 2 year old son. They're marriage is going perfectly or as perfectly as it can go.

Then a female friend of Marco from when use to play around pops up one day looking for a place to stay and he invites her into their home without even talking to Aliyah first. Will this girl destroy their family or will she only make it stronger?
Is she going to be the major problem or will she only be a pebble I'm their mountain of rock?