Sorry, should have said I'm 16

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Indeed here may be deeper reasons. I hab always been solitary since for bee, even in nursery my mum said I sat on my own with my fingers in my ears. Ever since I can remember I have failed to socialise, except with at the most 3 people.
And no, i steal for the thrills, it's good fun, If difficult and dangerous, which why I seem to enjoy it more. The odd thing is, when I'm usually cool and collected when stealing/normal life th second a girl turns up I get all cautious and shy, but I guess that's my age and lack of social life for you.
I should say that when I felt close to suicide, that was when I lost the one (of three) girls I was crazy about (and I mean crazy). I went through a period of extreme sadness when I then considered (not too seriously) suicide, but then emerged in this kind of psycadellic giggling state holding a razor to my hand, happily considering self-harm, then (1 hour later) I went back to my serious self, and wondered whether I wanted to live, quite calmly, but eventually decided against it when I found something I actually enjoyed in life, thank god for that.
I've never been bullied for emotions, only for being 'odd' ie not speaking to anyone. Indonkneonthat usually every time I reveal my true thoughts/emotions, I have stopped being "freinds" with (with two of the girls, They didn't really know me much, so I think I was too fast?)
So this could e more deep, I'm not sure?