Guys and girls like demon here, please be civilize. As you know, Japan is a very polite and civilize country. What will any Japanese who visits this site (if there are) thinks when they read posts like that? Posts which degrade based on outward appearances, posts which do not even have good grammar trashing somebody Yui probably like/love? It isn't very nice, is it?
As much as you are growing up, Yui is growing old. She was done growing up already. Why stop her from transiting to the later part of life like you are right now? So it doesn't matter which guy Yui chooses, he could be on a wheelchair for all that matters, but the main significance is that she should be happy with the one she chooses to be with. I will not be glad for her if she wants to be with him just because she thinks that she is not getting any younger and she needs to find somebody to settle down. But I can bet some cash, that she has so many candidates vying for her, 'desperate' is not on her dictionary.
In the years to come, she will probably do what humans are made to do - reproduce. We got to accept the fact that she will one day lie in bed with another man. True care is where you wish for her happiness, for her to be stress-free, not being whiny and butt-hurt just because she is moving on.