Why do guys always say this

Why do guy always say I knew this would happen as a result of me breaking up with you not like ignoring her for months on in when you let her fall head over hills for you not that you didn't open up and be honest with her but pushing her completely out leaving her questioning what flaws pushed you away from her not that you let her completely open up to you when you made her feel like her time wasn't as important to you she loved you with all her heart she even looked  at you as a role model but she didn't know you couldn't even be honest with her she breaking down to depression all because he did was tell her nothing she sat their waiting but he already re dating she feel so lost and broken because she knows what she had is for ever lost and already spoken for he walks out the door while she lays on the floor she loves him like he's her world but she knows he has eyes for another girl