My first time posting here... I'll try to be succinct AND to include as much background as possible.
I left my husband nearly 8 years ago. It wasn't exactly an amicable split at the time. Our DS was 3. As we lived in the same city, he spent time with both of us, but slightly more with me. Because we were sharing care of our DS, we didn't bother with any formal maintenance, I just let him know each month how much I'd spent on childcare and anything else such as school shoes etc and he'd pay me half.
I have a new partner now, been together since not long after the split and now married and have a DD and DS together. After about 2 years we decided to relocate for many reasons and moved to a rural county 2.5 hours away by train. Our DS stayed with me. I felt very very guilty about taking him away from his dad and I didn't ask for any maintenance. Shortly after this my ex lost his job and was out of work for a good 2+ years, so obviously maintenance wasn't something we did. Although we live further away, I always facilitate contact when my ex requests it.
My ex is now working again and has been for 2-3 years. Shortly after he found a job I asked for some contribution and he set up a DD for £250 a month. Better than nothing. So, here's the issue. My OH is getting really irritated by this amount. I don't know what my ex is earning, but I know it will most likely be in excess of £80K. My OH pays his ex the best part of £2K per month in maintenance as calulated by his earnings. He also sees them every other weekend and pays for swimming lessons and other normal stuff (not a hero, just like he should!). If we went down the CSA route, I know we'd be 'entitled' to far more. Although we are reasonably comfortable, things are tight at times. My OH has no issues with supporting my son and he's lovely about it, but at the same time I think it's a matter of principle for him that my ex should be contributing more to his own son. I still feel guilty that I've separated my DS and his dad and know that if we hadn't moved they'd see more of each other so maintenance would be less any way. I also know, for a fact, that this coversation won't go well if I do approach him, he's not the easiest or most pleasant of chaps, hence the fact I'm no longer with him... So, WIBU to ask him for more? Am I being grabby, or just asking a father to do what he should be doing?? Agh!!