M.K.
Hill, this is heart breaking , yet true,
there is no easier way,
just make a big deal about it, and say how fun it its and how happy it makes you, what a big boy he is, how proud you are ect..
I mean he is still little,
after a while he will grow to like it, but when , just depends on your child,
remember, your apprehensiveness about leaving him, is felt, and projected onto him, so aslong as the nursery doesn't complain, then this is fine.
he isn't being hurt, let him bond with them.
give it time.
Good luck
M