You can change too along with the relationship. Usually it's for the better
Just don't push it. I'd just let everything happen as it happens. Take it slow A lot of people rush into relationships when they're not ready for it. It'll be the best way to figure out what's best for you and what's best for the person you like but if you love them then I bet you'd try to make it work.
I don't know who you are but I think you're worrying too much about what they think of you.