Matthew 7:25 And the rain fell, and the floods came, and the winds blew and beat on that house, but it did not fall, because it had been founded on the rock.
The rock is Jesus. Everyone then who hears these words of Jesus and does them is like a wise man who builds his house on the rock. In a relationship with the opposite sex, the foundation should not be the feelings (no matter how delicious). The foundation, as with all of life, must be Jesus, or the house will topple over.