My 12-year-old dd's phone was lying on top of my bed earlier, I heard a beep & picked it up as she had been texting her dad whilst I was in shower.
Turned out to be from a boy in her class. A boy who is 'going out' with a friend of hers.. A boy who has been described to us as being geeky, smelly, ugly etc.... (Of course I am aware when you're 12 that's how you describe boys!!!)
But the texts suggest to me they're boyfriend & girlfriend. 
Reading through the text messages he called her on Christmas Day, she called him late last night when in bed etc.. She sent him a message earlier with some one direction quote in it.
I know I shouldn't have read her text messages, but I feel sick. She's just 12 (a few days ago) but I know it's nothing serious, but the texts from her have been heavy, ending in hearts etc... His are silly ones telling her he's been on wii/xbox etc.
They also refer to a girl P who seems to be stuck in middle ie: 'P told me to text you'
I just said to her "who's xxxx? Is that the dude S is 'going out' with?" She said he's a boy in my class, S thinks they're going out, but he says they're not. Were you reading my phone?"
I said yes, (no point lying) she said they're just friends but went all red.
I don't make a habit of reading her texts, never have, she knows that. But she's going to tell me even less now, isn't she!
I just don't want her to come across all needy & 'in love' with some spotty little shit who's going to laugh & make fun of her at school.
Neurotic (as well as untrustworthy) mother here