I just want better for Oscar

See I love these reincarnation stories but it really makes me grumble when the ml suddenly dotes on their newest child (fl/mc) and the other child just becomes a side thought. I really like Oscar, he's a good boy, and I think his upbringing with his mother who never really wanted kids or her marriage, you can see how it affects him. I hope he gets more love and appreciation in the future and that I'm not the only one wishing for this.