First of all, apologies for not seeing this thread until now.
So sorry to hear that you have been having to put up with such crap, Brian.
It's horrible to think that one person, or a few people, can cause so much misery. They sound like a bully - they don't back up their statements, probably because they know they can't. And no matter what they 'think', they have no right to act the way they do.
You say you've few friends - well, you know, most people have few genuine, real friends. And it's harder for guys, even in this day and age. But it's clear that the friends you do have are real, they know you.
You know in your heart that you are nothing like this nasty person says you are.
You're very sensitive - (quite a lot of us on here are like that, too) - and that means things hurt more. But it means you're a nicer person. You can be a good friend to people - someone who could help a lot of people in years to come. Men would value having someone like you to lean on. And women will love you. Because a sensitive man is a real treasure. Your girlfriend is lucky to have you - and you really care for her. I hope you can have a great future together.
You said you don't like fighting anyone - life's too short. If only more people would realize that, the world would be a far better place.
Your ambition is to be accepted for who you are - you know, that's what the vast majority of people throughout the world crave - to be accepted as they are. Some don't realize that's what they're longing for, and spend years - maybe a lifetime - chasing other goals, that never bring them true happiness. You've got wisdom.
You said there are other factors influencing the way you've been thinking. I hope you can talk about things to someone/someones who want to help. We all need a bit of support every now and then.
You said that the people on here seem like a nice bunch. Well they are. Oh, in any place, there might be one person who doesn't understand, but I've 'met' so many people on this Forum who are great. They are caring and do you know the best thing is, they are just ordinary people like you and me - and because they've had their ups and downs, they know what they're on about.
There are people on this Forum who have helped me a great deal. So what if they're not Irish (no-one's perfect

) - so what if I might never meet them 'in real life'. I trust them, and feel I can be myself with them.
Brian - reading your post, it's kinda obvious that you're a fantastic guy - don't let the bad guys win.
Maybe you've been under a lot of pressure, trying to care for others, trying to appear strong. Look after yourself. There are people who care about you. Sometimes it's hardest to talk to those closest to us, but there are people who can help.
I want to thank you for posting what you did, because sadly, many people feel a bit like that, at times, and it's good that someone has the courage to be honest, and get us thinking - and talking.
Only in the past week, we've heard here in Ireland about someone who was driven to drastic things, but who apparently 'never showed any signs of distress'. No-one seemed to know about the hell she must have been going through. If only she could have reached out to someone.
Lots of people are living with sadness and intolerable pressure, but there are so many people who want to help, and who care. The people who are suffering most at the present time will probably turn out to be those who will most help others in the future.
Hope things get better real soon
D.