ah, it's ok. It is a really, really shitty situation to be in. I know what you mean about feeling so wrong, it's so hard to think you're the one that's going to (at first!) make your family unhappy, but I do sincerely think that if it's not working, and you've tried, it's ok to stop. You deserve to be happy :)
I've been with my DH 17 years, and the problems were low level but there really very early on, but on I bulldozered, thinking it would all be ok, or that I could make do. I, like you, have tried, suggesting, making an effort, trying to force him out on date nights (never even happened - he ignored that suggestion until a couple of weeks ago when i think he finally realised I want to go). We too have thought about counselling, sorry, I thought about counselling and suggested it to a lukewarm response of, "I don't want to, but if you want to i suppose i will") and gradually, over time, and then quite rapidly in the last month or so, I just realised it's never going to get to a point I would feel like I'm in an actual relationship.
I'm feeling like you about the counselling now too. I wanted to go to relate but he suggested five free sessions through his work insurance wellbeing service....I don't want to fix our marriage any more but may go as a way of being able to talk rationally to each other and maybe understand what's happen and where we go from here.
Anyway, Iron, be strong, you've made the first move. Remember you have the right to be happy too. I think we all owe it to our husbands to try, and to talk to them about it, but if that fails repeatedly, and if no ones up for counselling, it's ok to stop. You're going to be ok. :)