Ah, yes, of course. After making sexual innuendos with her son from his infancy til puberty, she suddenly gets her moral compass straight and leaves him with her sister, which is engaged in some kind of illegal activity that she is well aware of. She does so without an explanation, goes on for several years without trying to make any kind of contact, except sending money to the sister, all of this just for him to grow up into an upstanding citizen, a grown man as you say. Now she comes back to finally have a happy loving relationship with him, which they both wanted all through his childhood. Makes perfect sense now, thank you for clarifying.