skater, that was lovely to read. Sounds like you've had some fantastic support. It really makes all the difference and I am one of the lucky ones like you.
Having said that, also like you, it hasn't all been a bed of roses. I was in a very unhappy relationship. It made it incredibly hard to leave, because we have a young DD and also, the love was still there. I still care very much for him, even though we very much still have our differences, but we grew up together and you can't just lock that away can you.
A few years a go, I remember thinking to myself 'well this is it then, but it's ok, I can leave when DD is 18. I'll still be young etc', but then I realised that actually, I would be doing her no favours whatsoever, by being in an unhappy relationship and kind of gave myself a slap in the face. I still have days where I feel immense guilt, but then I have to remember that just because there are tough days where DD asks why me and her dad are no longer together, those days don't outweigh the good days, where I'm a happier and stronger mum for her. So far, she's never really questioned mine and my gfs relationship. I thought it would be massively confusing for her, but all she's said is that she thinks it's a bit odd for two women to get married, but that it's ok if they love each other.....and she was only 6 at the time! Oh and she thought it was fabulous that there would be two beautiful wedding dresses! 
I know my situation isn't exactly the same. I didn't leave my ex because I was gay, however my bisexuality was probably what gave me the push. That might not make sense, but it was a very complex situation.
I did have support from most of my family as I say. Much more than I thought, but I have lost a few friends a long the way. It's been very gradual and subtle, but tbh, these were probably more acquaintances and nobody that I really miss. It certainly shows you who people really are. People I thought would be fine with it, have been a little frosty with me and people I assumed would be horrified, like my parents and grandparents, have been overall, amazing.
I would like to join a RL support group, but I haven't really found anything which I like. My gf doesn't feel that it's necessary for her, but believes it would really help me, as I'm very up and down with how out and proud I am. I'm not ashamed, don't get me wrong, but I do have days where I just think it would be easier not to hold hands, or show affection, just to avoid unwanted comments. I shouldn't have to of course, but it's still fairly new to me.
I did get in touch with my local LGBT group, but I was put off by a few comments where I'd read that women like me aren't always accepted or welcomed as much as others. Apparently I would be described as a "lipstick lesbian" (never heard of this) and that 'real' lesbians, get a tad suspicious when a very feminine woman, hence lipstick
, joins the group. I really hope this isn't true, but I'm fairly shy anyway, so when I heard this, it really put me off going. God, I read that back and it sounds so offensive, but honestly, this is what I heard. Maybe you could put my mind at rest with that one 