You might see Steve in s2 giving Dustin bad advice about girls and see him being a trashy teenage boy, I on the other hand see him having had a major fight with his girlfriend and her refusing/unable to say she loves him after he has been visibly clingy and wanting to hang out with her all the time since the beginning of season 1 and say he was actively trying to back peddle his own desperate need for affection and attention and figured him being clingy and caring in his way might've been where things went wrong for them, as he tell Dustin he's too young for heartbreak and is trying to help him. Who, by the way, kidnapped Steve when Steve was trying to apologize with roses even though he didn't think he was the one in the wrong. Sure Steve. Act like you don't care. Ok.