<human>: Last night my boyfriend and I were texting and then all of a sudden he said "You deserve better than me" and he told me how he was always angry at himself for no reason. I didn't understand and I told him I loved him and he was the best thing that ever happened to me but it didn't seem to help. 

This morning apparently he left a note on his kitchen table for his mum that he was gonna go be alone for a few days, he'd be alright and had some cash and he'd be safe and to let me know, but he didn't say where he was going. He doesn't even have a car or anything. 

Me and his mum have called/texted him countless times but his phone is off. I have no idea where he is or if he's safe. He's never done anything like this before and he's never indicated to me that he was feeling any of this self loathing before so this is all out of the blue. He does go for walks at night by himself regularly but never stays out more than a couple of hours. 

Does anyone have any insight into why he might be doing this? Anyone who's done something like this, where did you go? Can someone please just reassure me even a little bit that he's not killed himself or done something stupid like that. I'm a wreck.

Can you condense the text into a few key points?
<bot>: Boyfriend acted strange and disappeared, left a note saying he was going to be alone for a while, why might he have done this?