I've been broken up from my ex for about a month or so now but I'm still really hurting.

I had some things of his that I said I'd take over to him and as id deleted and blocked him I didn't have his number anymore

I knocked yesterday and his mum answered and invited me in. When I said I wasn't staying she seems a little surprised and asked my ex to come to the door. I saw him in the kitchen and he gave me a horrible look and sort of guestured his hand to me to shoo me off. I drove off in tears.
He then txt from his mums phone this message
'Thanks for embarrassing me like that. I hadn't told my mum we'd broken up. I didn't even want the stuff back'

I haven't replied but have been crying every night when I go to sleep