He returned to her and stayed with her for three years under a new identity, but she had no idea...
It turned out that they had known each other decades ago. Not only were the two mothers good friends, but they were also good childhood friends.
Seven years ago, he fell ill and needed to go elsewhere for treatment. He didn't even have time to say his final goodbyes...
Now, he's back with her, even with a new identity
Intention: Avoiding can't solve the problem, then learn to face it