Ok. First I'm sorry it didn't work out for you. It doesn't sound like there was that much time or experience shared. Nonetheless
I'm not a big "you're a bigger jerk cause you didn't say it to my face" person. Would you feel better if he took you to dinner, told you there ? And then sit there awkwardly or worse feel like you don't want to see his face a minute longer so you leave.
You can sulk in private and now you know it's over. No mixed messages or wishy washy stringing you along. Or worse using you.
Don't let your heart be broken. Let it love.