Bit of background, I've been seeing someone for nearly 4 months now. He has 2 children (12 and 14) and I also have 2 (10 and 16). I have my children most of the time, but every other weekend they go to their Dads. My oldest is also usually happy to sit the youngest if required.
I need to start off by saying that the guy I'm seeing does appear to be a great Dad, and prioritises his children, which is always a good thing.
The issue (for me!) is that he doesn't have a set contact schedule. He appears to have them the majority of the time, but they come and go between his and their Mum's house. He also takes them to all of their sport, and there is a lot. Sometimes they'll decide to stay at their Mum's, but won't tell him until the last minute. I then get a call at about 5pm asking if I want to go over that evening. Now technically I could ask my oldest to have my youngest, and sometimes I do, but I would find it unfair to ask a lot, and also at very short notice.
So although I find it fantastic that he is so flexible with his kids and co-parents very well, it means it's extremely difficult to see him. We get on well but would I be unreasonable to call things off? I'm currently managing to only see him once every 7-10 days and I don't see how things can progress this way. I'm not prepared to introduce him to my children after 4 months, or ask my oldest to sit more frequently!