Santa’s village!

So my 5 year old grandmother on his fathers side gave me 2 free tickets to Santa’s village. My 5 year olds father and I are not together but I am still very close with his family.

My current SO and I are expecting a baby and I asked him if he wanted to come with to Santa’s village I told him that my sons grandmother gave me 2 free tickets so we were gonna have to buy a 3rd ticket.

He said he didn’t wanna go because he had to buy a ticket

“Your inviting me and you have free tickets and I have to buy one I don’t wanna go then”

Those were his words. How would you ladies have felt in the situation and was I wrong for inviting him?