They can both definitely get something out of that relationship. Problem is, rotten foundations never lead to long lasting structures.Hmmm I do understand other peoples point of views on this one. About the guys being a "replacement" and stuff like that... but the way I like to look at this story is a meeting were both help each other out were she goes through it trying to overcome her way of grieving and putting those feelings into place while the guy overcomes his failures of being a manga artist with her help while she gives him thr validation and push through the story.
Idk I feel like it is way better than thinking the girl is the only one benefiting on this when the guy is also winning quiet a lot in here. Like people say "he is exactly were he wants to be" maybe in the future the drama will hit harder but for now those are my two cents.
They can certainly help each other, but as things are going now they are not doing something that is good for either of them. It will not last