<human>: So what my girlfriend does very often really worries me is how often she responds to my calls/texts. She can not text me back or call me for hours for example today: 11 hours without a single text or call back. Maybe it seems stupid but she always claims she was watching TV. This is almost a daily thing that never happened before and it's starting to rise my suspicion that something's up. 

I'm not trying to sound controlling or anything, but who wouldn't be worried about not hearing from your girlfriend for nearly a whole day, and when you do finally hear back it's the same excuse? It's not that it's making me that mad, more or less just worried about her. 

Could you guys voice your opinions on this and what you think may be up?

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Girlfriend doesn't respond to my texts and calls for almost the whole day, multiple times a week and gives the same excuse for not being able to text back.