@Karmichel She still has her parents (or where they the late husband's parents?), so it's unknown how much help she might need from the outside. I would much prefer that route compared to any rival ones, though. In the first place it seems to me, based on this chapter, that Yuzuki might like Ryo a bit, especially after she saw how well he got along with the kid, but presently she doesn't want to fall for him. So, if someone else showed interest in him, she would likely be happy for him and use that as a reason to force herself to forget him. Nevertheless, a good mangaka ought to be able to come up with quite a few reasons why Ryo could further interact with Asahi and make himself important for the fatherless kid. With how much Yuzuki loves her son, she might find it hard to separate them and thus she would naturally grow closer to Ryo as well.