Intimacy issues

Me and my partner have been dating almost a year and half of that as long distance. We used to have sex 2-3 times a week before the distance and now when we are reunited they just aren’t interested. They insist that they find me attractive and will say as much most days, but I can’t help feeling insecure to the point I’m afraid to try and initiate anything more than a cuddle.

How would you approach the situation? What you would you suggest?