Boyfriend ditches me and lies !!!!!

My boyfriend is such a shithead honestly we had supper plans and then we were going to spend the night at his house but then he texts me 2 hours before that he forgot he had plans with his guy friends ?! It’s such a lie cause the night before he said it was our night and he was doing nothing. This is so frustrating and happens a lot and I told him you can’t ditch me like hat but he still does it! What should I do ?