Luke drove away first, and then Alex followed him from behind. Luke drove his car while looking at Elena from time to time.
Luke suddenly remembered his past memories before he got married to Elena.
Luke never fell in love with anyone before, and he was also reluctant to have a lover.
Luke really loves his mother so much, so he agreed with his mother's idea of getting married to Elena even though he didn't love Elena at all.
Luke had a trauma about the relationship because his father had hurt his mother in the past.
Luke already forgave his father for his past mistake, but the trauma still remained in his heart and mind.
It was a trauma that he couldn't forget all of his life. The trauma always haunted him in his dream, and it made him couldn't sleep from time to time.
Luke didn't want to hurt Elena, but he couldn't pretend to love her either.
Luke was afraid to hurt Elena the same way as his father did in the past to his mother.