Hi Kaluki,
I embrace going away on my own and I don't see it as a problem.
I think it helps with the way that I think about things and have done from the start. I came into the relationship expecting, if not demanding that i would have "me" time. We have my DSC EVERY weekend and one night a week.
I accepted that my DH has three kids and that he will want to spend a good deal of time with them and I would have to fit in with that.
I might not want to spend every weekend with three kids to be honest. I have precious little time off and a busy and stressful job.
I have a wide and scattered group of friends and family (my family are a good 300 miles away, my brother abroad)- my BFs are single. My DH also has little time off work.
To meet my wishes/needs of holidays, time away from my stressful job, time with my friends and family AND HIS wishes/needs of the same plus time with his kids PLUS time to be together as a couple means that even in the most flexible arrangements, something has to give.
However, I know this is probably my rather independent nature which fuels this- rather than an answer to your question. I don't fuss over the fact that my DH loves his kids possibly more than me- how can I measure that or get hung up about it?! It's just that they need him more than I do most of the time..as the great Kaiser Cheifs said
"Love's not a competition, (but I'm winning)" not a great sentiment.