They room together.
They clicked with each other.
Were they with you?
They love each other?
Do they love each other?
They loved each other.
They faced each other.
They fixed up a quarrel.
Are they both acquaintances?
They were living together well.
They changed seats (with each other).
They live together in unity.
They are living harmoniously.
They held each other tight.
They hugged each other.
They embraced each other.
They had a discussion together.
They parted on affectionate terms.
They started dating.
She got along with them.
They talked to each other for a while.
They have shacked up together.