Well personally speaking... online dating can put you at an advantage.
If you're sick of men trying to turn every date into an invitation for sex, then all the horny ones will usually give up when you refuse to "come over and chill." Additionally, the ones who stay are forced to keep up a stimulating conversation with me and build a connection over the net, something that is not simple to do. DH could stay online with me for like 8 -10 hours straight on several occaisions... and we had webcams to add to the experience. By the time he saw me, I was 95% convinced we were a match.
Now... in your case, it may feel like a strain, but the truth is, if you have things to do and can use your time wisely while you're away, yet still provide opportunities to see him at least every 2 or 3 months, then you'll be okay. The biggest problem with LD relationships, IMHO, is that people feel they need to have immediate access to that other person whenever they need it, physically. Truthfully speaking if a person loves and is there for you, they'll be there when you need it, even if it's across the world.
Now OP your situation is not military-related. That's a plus.... but I have a military spouse and I had to deal with times he couldn't be there due to work but the second he was free, he would contact me. As long as you're flexible, you'll be fine. Flexible to the relationship.... and the type of relationship it is.... flexible to the plans and flexible in how you date.
