How to mend the relationship? I'm in uncharted territory here.?

In the last few weeks I'd made friends with this really cool guy. We'd been hanging out almost everyday for two weeks, and I've really enjoyed talking with him and his hall mates.
However, a couple of days ago he confessed his feeling over text message. I told him I just wanted to be friends. Honestly, I've never had a boyfriend, and I have no desire to be in a relation at this point in my life. But now I'm not sure how to fix the relationship. How long should I wait to talk to him again? Should I send a casual text message? Should I stop by and hang out like normal? Any advice would be greatly appreciated!