So I started talking to this guy and things were going great even though we've only know each other a very short amount of time. Recently we hung out and asked me to be his girl. I declined and said I wanted more time even though I do really like him. Even then things were good and we kissed 3 times that day. (This was Sunday) the last time I heard from him was Monday (which was only a good morning text) but I haven't heard from him since. I tried sending a text but it said message send failure. Is his phone off? Am I thinking too much into it.??? I don't want to nag him