How it works out or not depends on how you initially met: is it online and never met in person, or have you kept a routine method of meeting up with each other across the distance?
I personally think, having done long distance for the first 30+ years of my life - it is really someone who has an issue of 'fear of intimacy' because you CONSCIOUSLY choose to pick women/girls who you can not spend weekly time with locally but someone who is far away.
Yes, this is all a conscious decision - you picked it, you own the drama of long distance, and when you cry and howl that she cheated on you or branch swung, what did you really expect???
This is your own issue - look inside, what are you afraid of? There are tons of women in the same locality as you live. Why go for or stay with one who you need safety and distance from?
This is a hard concept to understand, but at age 40 I have realized how long distance is just a protection and mask for someone who chooses to play safe and never really want something to work out successfully in the deep end of the unconscious mind.
Good luck
With respect,
Exodus