I'm sorry I haven't checked in for a bit. I am also sorry to learn about the new developments. I agree with Jeff. It's only over if you choose it to be over. I'm not sure that his response to a text message can be consider definitive. However, if you choose to make it that way then I guess it can be.
Give it a little more time. Focus more on what makes you happy. Have some fun. Get a life and enjoy it. You never know, he may come back once he realizes what he is missing.
You can choose to be happy either with him or without him. Happy is your choice in the end.