Dating someone is about getting to know people to see if they are a good fit, if you are comfortable with them etc. Dating isn't a project to see what you can fix or find out and it isn't a marathon to see how long you can hang in there and against what odds. I've made this mistake.
There are lots of 'fish in the sea'. Dating is like fishing. Fun but keep fishing until you find your keeper and throw the rest back. I've made that mistake too.
Listen to your gut feelings.
Don't keep a boyfriend that isn't your best fit. Don't hang in there just to finish the race. Now is the time to make decisions because the longer you wait, the more you get entangled and invested.
If you think of it that way you don't have to spend 5 more minutes trying to read between the lines of what he said. Just go with how you feel. Take care of yourself.