A man spends his whole life searching for someone to fight alongside him. What truly matters to a man is never the daily small emotions or petty conflicts, but whether you still stand by his side when he hits rock bottom, under immense pressure, and his life collapses. A man judges a relationship not by how romantic you are on ordinary days, but by: "Can I entrust my back to you?" Small temper tantrums can be tolerated, but leaving at a critical moment destroys a person's deepest trust. Because the greatest fear of someone who has been charging forward for a long time is not failure, but finding that the person beside him is the first to flee when he falls. The truly advanced relationship is not about enjoying success together, but about one person being willing to be the other's support during their hardest times. Ultimately, what love tests is not sweetness, but the ability to bear fate together.