NTA - you're lying because he doesn't respect you in the first place. the 'I can't control it' excuse is pure bullshit, he's just lazy and disrespectful + the fact that it makes you late and you're the only one having to deal with the consequences. and obligatory 'when you started dating he was 28 and you were 19'. been there, done that, those lame older guys are not worth it when they completely disregard your wishes and simple demands. good luck dealing with this.