Is he telling me the truth?

Ok so some of you mite have read my question from yesterday, others maybe not. But you see i said that I had major trust issues with guys cuz of past relationships. Well this guy that I met, I took a chance with him and went out with him. Everything was perfect. We even made plans to go to the movies tonight. But yesterday night, he texted me shortly after we hung out saying that he was grounded cuz of his grades until further notice. The convo got very vague after that and finally he just stopped texting me. Is that a bad sign?