I am talking to a guy that I met on Tinder one year ago even though I have a boyfriend
This seems a bit unethical, don't you think? Why are you talking to someone on Tinder if you already have a boyfriend?
I enjoy talking to him even though I have a boyfriend
While this may feel nice, it is still technically cheating and mostly everyone would agree that you shouldn't be doing something like this. Would you like it if he was secretly speaking to another woman behind your back?
It's all fun and games. I don't know what you want me to do.
What I think that you should do is speak with your boyfriend, it would be fine if he's okay with it. There's nothing really wrong with spending time with another man if there's nothing sexual behind it.