Don't force the cuddle issue. It's supposed to be comforting for you both. I'm sure he will come for cuddles when he's feeling settled. Is it possible he didn't get much human contact before he came to you? He might just not be used to it. Perhaps he just likes sleeping alone. Mine loves to cuddle on the sofa before sleep but when he's nodding off, he'll walk right to the furthest end of the sofa. I was a bit offended at first but if he's happy, he's happy!