Partners can rely and trust one another. That is what makes a relationship strong.
As far as not knowing what to do- you've been intimate. That is when a friendship turns to something more.
If the two of you have mutual feelings, the you can decide how you want things to go on. If on the other hand you do not feel ready and want to explore other options, then that is another venue for you.
If you lose him as a partner you may also lose the friendship.