Drifting After The Unexpected (1D fanfiction)

When Riley Alba decides to bring her 2 best friends to London,England for her collage trip to become a famous baker,Riley and her friends get caught up in the drama.
When Riley's bestie,Ali Sandow meets Zayn Malik in seconds they fall in love. The 3 girls happily getting along with their loved ones,until Kristen finds out theirs more than one girl Niall has been with this whole time... At Liam's 19th birthday everyone gets a bit too tipsy and mistakes are made.
Big suprises and,Questions are made over the weeks.Riley tells Harry the unexpected,will it drift them apart? What will it take for the couples to keep them from drifting apart?