Whats going on with him can anyone help?

we been broken up for three weeks from a 2 year relationship we hung an we cuddled an we ended up having then 2day i went to see him an as i was leaving i asked for a cuddle to see if he would an he said no ive moved on an i went ok then but the he went awww come here an he gave me a cuddle he wants to hang on sunday whats going on i need help please please please help me