Ok, I still think he's blustering now and won't actually serve you until he can get his crap together. So you still have the head start and will probably be able to serve him at the apartment. Don't feel bad about having your own L do all the work--you would need to know all the financial stuff no matter what.
I'm so sorry he ruined the day like that. But cheaters are self-centered jerks so it's par for the course. I hope you can get S13 to talk to someone so he can let it all out. How horrible to dump this all on S10 like it's his fault because he wasn't ready to go!
Deep breaths. Couple cocktails. Cry, scream, yell, let it out. I'm here if you need anything.
If you love somebody, set them free. http://tinyurl.com/2empx2g
