Not at all. Rio has her own set of issues, she seems to have trouble relating to people and commitment, they may be due to she being really atractive and her relationships have been superfluous. We even have small flashback to 3 incidents (a small panel each), one during her teens/college era with a man telling her she is too pretty to be left alone, another who seems like an assault of some kind, and other with another man in a suit yelling at her for rejecting a proposal, telling her that if she didn't mean to compromise she shouldn't be wasting people's time.
Kaede is not emotionally stable, he just finished a relationship and is on a rebound phase. He also is really eager to form bonds, anyone willing to listen and treat him like a "normal" person, is good enough for him. That is not how relationships work.
In chpt 30 Rio confronts him, he really doesn't know her, she is not as good as a person as he thinks she is. What does he like about her? Her kindness? Her politness? Does he like older woman? He maybe mistaken about what love is, thus he doesn't really love her.
To this Kaede starts to cry and tells her he does know he is too young for her, but he likes her for being kind and because around her she is calm and feels safe, so developing feelings for her is "normal", and she disregarding everything as a mistake is rejecting his feelings of being "normal". He may not know her, but he is wants to know more about her
So Kaede only wants a relationship not for him to move on, or to form a real bond, he wants a relationship just because that is a "normal" thing to do. His approach to relationships is in itself wrong, his feelings may be real, but his goal is not to improve and move on, is to be validated and feel in control of his life. This ultimately will ruin any relationship he may have because anybody is good enough for him he is not seeing the person, he is seeing a tool.