@vwman I don't think it's a man/ woman thing at all
I've had men become 'attached' after dtd who I've had no intention of having a relationship with. I'd rather dtd early on to establish whether it's worth seeing them sitting on again and am perfectly capable of doing so without falling madly in love with whatever's on the end of it.
I'm not denying that some people associate sex with love, but I think it's a much more even split than you think. Certainly if I look at my friendship groups I'd go as far to say that it's the women that have a much more 'smash n dash' attitude to dating
I also think it's utter bollocks that making a man wait makes any difference to how they treat you. If they're going to stick around and want a relationship with you then they'll treat you right whether you've dtd on the 1st/2nd/99th date.
@falaff as hurtful as it is right now, try not to question yourself. You did nothing wrong here, but it hasn't worked out. That's all it is. Try not dwell on him, he wasn't feeling the same as you and, as harsh as it sounds, he wasn't obliged to. He's been honest with you and told you how he's feeling and yes, he maybe should have had the balls to say something sooner but sometimes it is easier to get swept along and say yes than to step back and be honest about how you feel (19 year old me did this and ended up married to it for 14 years 😬)
Take some time for yourself and do something that makes you smile. In a few weeks this will feel like a distant memory and you'll see that it wasn't right for you. 