No, not all stepmoms are depicted the same way in comics. Comics have creative license and might not represent the full range of stepmom experiences in reality.
Yes. My Demon originated from a manhwa and has made certain changes to fit the medium of the adaptation. But the core elements and storylines are drawn from the manhwa source.
In stories, stepmoms are sometimes shown as having great adaptability. They enter an already - established family dynamic and are able to adapt to it. They can also be very inclusive. They make sure that the stepchildren feel like they are an equal part of the family. For instance, when planning family vacations or events, they include everyone's interests and make sure no one is left out.
Well, you could try doing things he likes together to strengthen the bond. Also, showing appreciation and support for him can go a long way. Sometimes, small gestures of love and care can make a big difference.
One way could be to have heart-to-heart conversations regularly, listen to his perspective, and work on resolving any conflicts together. Surprising him with small gestures of love and support might also make a difference.