Llareggub -- I'm just barging in, unsolicited, to say PLEASE don't say you're crsp at online-dating just because you haven't been asked for a D2. Don't blame yourself! It's just a numbers game. It really only works when you completely detach from it emotionally and try to see it (laughs hollowly) as a way to get out of the house, try a new coffee shop, meet a few people.
I went on about 25,000 D1s before I met the bf. I kept him waiting 4 weeks for our D1 as I was secretly on a diet! I didn't allow myself to meet him till I was 10stone.
And no, I wouldn't bother reigniting old embers from G'S men who wrote but didn't ask for a date. I had loads of those, I just let them drift. Lots of men just seem to like collecting penpals.
Next!
It'll pick up soon. I work for a dating site and we find that summer is really quiet. In September people start staying in more and looking towards Xmas etc, so it'll get a lot busier.