I agree with Sophie.  Having an ongoing "relationship" can work great for both parties.  The excitement is there without the worry.  New discoveries can be made with a level of comfort.  BUT, it has to be with someone that you like and would be friends with in the "outside" world.  Most importantly, you have to have open communication - reminding each other that it is a business relationship.  I have become very close to several people in this way - but always make sure that our intentions are clear.  While I care deeply for them, I don't plan on dating or marrying them!  lol

Good luck,

Kari