Sorry everyone to have abandoned the thread for so long - sick, teething child and my DH is away so I'm on my own!
Thanks to everyone who's been offering such support, especially Thatlldo, dictionarydiva, Video and LRD, and those who've posted links and suggestions for counselling and support.
I thought I had made it clear in my OP, but I don't wish to make a formal complaint or get 'revenge' (although I do sometimes wish I'd bump into him so I could kick him in the nuts!). I don't think he's a serial abuser, just a really emotionally immature man who thought it was normal and reasonable to have a relationship with a teenager. I have asked around since, and he doesn't seem to have moved on to any other young girls.
Besides, I burnt all the evidence years ago in an attempt to 'get over it and move on'.
I'm not sure what I want really, other than just to find somewhere to express how angry I am. I suppose the reason I've been thinking of talking to the current HT at the school is because I think the total lack of pastoral care shown towards me indicates a worrying culture in the school that should be addressed, and many of the same teachers are still in place. What I would like would be to know that someone was looking at the current faculty and making sure they are taking proper care of all the kids, with maybe some retraining for those with the wrong attitude.
As many have pointed out, it would be impossible for me to broach this without the current HT being obliged to take formal action, so maybe that's not the path for me - I couldn't deal with the stress of a formal court process.
To clarify some other things, our relationship started a couple of months before my 16th birthday, but he deliberately held off from it becoming fully physical until after I turned 16 because, as he put it, 'I don't want to go to jail'. I lost my virginity to him a month after my 16th birthday.
We got engaged when I was 17, but it was always secret. He taught me at GCSE and A Level. My parents didn't know about the relationship until years later, when it was all over. I moved away for university after school and he would visit me there.
I ended it when I was 20. I had grown up and changed and he - obviously - hadn't. He then badgered me to get back with him for a year or so until eventually I stopped giving him my forwarding address - university years, I was moving house a lot and working abroad in the summers.
At that time, it was legal to have a relationship with a pupil over 16, but it was against school rules and definitely a sackable offence (and would bein every school, I'm sure). Also, I went to Catholic school, so it was also against the school's religious ethos.
He was divorced with two kids, who are now grown up, and often mentioned that he couldn't afford to get sacked because he was completely financially supporting his ex-wife (who didn't work). I spent most of my time at school petrified that we would get found out, he would be sacked and it would all be my fault.
I guess there are various reasons that those feelings are resurfacing now: I'm now the age that he was then; I teach at university and - looking at the 18 and 19 year olds I look after - I see how young and vulnerable many of them are and can't imagine starting a relationship with one of them; I've recently had a daughter. Also, I'm now in a much better place than I was in my teens and twenties and I find a lot of the things that I've refused to think about for years are resurfacing.
Also, my sister came round for dinner recently and - after much drink had been taken - she started pushing me to go to the police, complain to the school and get 'closure'. Not what I want, but it did start me thinking. I'm more angry with the staff who did nothing to protect me than I am with that stupid, immature manchild.
And yes, even when it's not illegal, I do think that all men in their thirties or older who start relationships with teenage girls are emotionally immature fuckwits. No matter how well-balanced, mature, responsible or intelligent a sixteen year old girl is, she does not have the maturity that comes with experience and cannot have a balanced relationship with someone who has already left home, paid bills, worried about bills, travelled, got and lost jobs, had previous relationships and done all the other stuff that makes you an adult.
In my experience, older men who go for younger girls/women tend to like to be in charge, are often manipulative and prefer someone with less confidence and experience to a grown up who knows her own mind.
BluePetticoat, you may have known girls who remained married to much older teachers who they started seeing at 16/17, but that doesn't make those relationships healthy. Plenty of dysfunctional relationships limp along and work well enough for years. I myself later married a much older man in my twenties and everyone thought we were blissfully happy until the day I left him six miserable years later. Girls like me learn to make our own happiness and not rely on the man you're with.
For everyone else, it's easy to get dragged down by the few weird messages, although I understand where they're coming from. We're raised with the idea that girls bring it on themselves, and that's why girls like I was blame themselves and - for years - can't see that this was an abusive situation, not just a bad relationship.
I just think that if you see a child who is throwing themselves headlong into a bad situation, you put out a hand to stop them, not to take advantage. A 16 year old girl who is throwing herself at much older men is fucked up, and if that older man is a good person, he will gently stop her from hurting herself, not start dating her. I'm really angry that no-one stopped me from hurting myself. I guess that's all I wanted to say.