I also agree that her accepting their relationship was unrealistic. Which made me question myself as a wannabe future mother... Of course, I'd want my children to be happy and find love and accept their identities but... How would I react to finding out my children were in a incest relationship? Disown them? Force them apart?
I wouldn't want to make matters worse or stop caring for them... Should I be more understanding if one were adopted? Would I be able to endure the criticism from all ends? Would I be capable of supporting them because of motherly love? And what about my future significant other; would they be willing to understand and work things out? Gawd, its be like "The Fosters" all over again, haha.

Their mom is the best, really. Coming in terms with her own son so calmly.. n accepting him.. that was really something. But accepting an investment relationship between her two sons(one adopted, but she loved him like heeown son) that calmly again.. was kinda unrealistic for me really. Well, other than that, this was really a gd read. Genuine one.