This is a difficult one, but I will try to keep my post simple. Things we experience seem to have HUGE complex little issues in it, when usually it's just really simple.
Explaining: I do believe that deep inside, every person knows what he/she wants from a relationship, every person knows where it will PROBABLY end.
P.S. Being honest in a relationship may end up being painful, but it will be more painful (for at least one of you two) at a later stage if you decide to say something that's not true. Just my opinion. Doesn't help much, but that's how I see things lately