I've been moping for too long

[Kitten2]

Over a guy I have been on a handful of dates with over the last few months. Had sex with on several occasions. We are not in a proper relationship, I know it's only casual. But he says he wants to keep going with it (us).

He always tells me how busy he is. His work schedule is full on.

We message quite a bit but sometimes he leaves me hanging between messages for a few days. I've explained I don't really like this and he's not giving me enough attention / affection / time. But I am so very attracted to him.
Every time I decide to step away he comes back and says he wants to see me or compliments me.

I am so fed up of thinking about him.
Not sure what I'm asking here.
Just wish I wasn't so keen.
It's actually hurting me.

Did he tell you he only wanted casual ? If so then it seems your expectations are misaligned as you want more than casual - in which case you'd be better moving on and looking for someone who wants more .
Other possibilities-
Is he recently out of a relationship? Not over an ex ?
Is he dating other people as well as you ?
Whatever he doesn't sound too invested but obviously doesn't want to lose the dates and sex as and when he feels like it . That's fine it that's what you want too - but it doesn't sound like it is .