For instance with the first couple, I really felt sorry for Yoji and I could totally empathise with him, so I wanted Tomoe to have to work hard to earn back Yoji's love and trust. But no, Tomoe does very little to win him back. Yeah, he does do one sweet gesture (the thing with the alarm clock) but I still don't think that was anywhere near enough. He did eventually explain his reasons to Yoji, but I don't recall him apologising even once. And Yoji just accepted it all so quickly. If I had my heart practically torn to shreds and had spent the following 3 years completely depressed and lonely, then there's no way I'd forgive the person who did it so damn quick. I'd put them through hell first. Though that may just be me...
As for the second couple, I couldn't fully believe in Sasakado's feelings. I dunno why. I think it's because he kept giving up too quickly (like how he didn't attempt to go after Kagawa until he had been rejected by Yoji, then later on he didn't fight for him when they broke up)