This post is specially written for a friend of mine.
Had some htht with wq today. Phew, the session was long. We realized that actually, sometimes we guys were actually the victim in a r/s. Not you girls. (Well, at least for the both of us)
At first, i thought i was the only one back then that got dumped by some heartless girl which gave no reason for a breakup. Now that i know, your case is even worst. 6 years of r/s! Just like that. Gone! Because of what? Unreasonable girlf. Girls. What on Earth are they thinking? We guys just can't figure that out. NEVER.
When the guy gets along well with the friends of the girl or his so called 'girl-friends', it means flirt. On the other side, if the girl gets along well with the guy's friends or her 'boy-friends', it's not flirt. Somehow it magically transform to socializing. Wow. I can't deny this fact more than anything else as it once happened to me just like your case. Why can't both parties have equal treatment so that nothing goes wrong? Well, this is just how the game plays... (I personally do not like my girlf talking to other guys so much which is why it's always the problem. :/ )
Quarrels begins after this usually which is 100% true.. The guy will then be deemed sensitive, insecure, etc. But come to think of it, are you girls being right? Can't your boyf be jealous over such things when you can? It's because he loves you. That's why he's being like that. So just please stop. Stop whatever you're doing and take a look at him. That's merely what we guys want.
I felt sorry for you bro... 6 years isn't easy.. We teared for the wrong girl way too much and enough is enough. It's just their loss. One day you're going to meet someone better like how i met mine. You just have to let go, open your heart once again and move on.
All the best bro.