Long distance relationships are brilliant, though for some in the long run exhausting.

I find them exhillirating because of the time limit constraints they force you to look and handle things differently. Because you know your time together is limited you prioritise things in a whole other way.

Being someone who needs lots of space and my freedom, and cannot spare the time to nurse fragile egoes I find that long-distance relationships are more ideally suited to my personality. You enjoy the time you have with the person without the petty nonsense a  normal relationship has. But I do not endorse open relationships either.

Yes its possible! as long as both parties have a pact or a plan when to see each other, also as long as they both understand the disadvantages this might add to their lives and be read to swallow the frustration that happens. But I don't think relationships progress well if they stay long distance for a long time, or move to higher levels of connections.