apart from the lack of childcare, I dont want to not see DS for 5 days a week before hes even one
Well, that's just how life is for a significant number of working parents. In fact, for men, it's the norm. Unless you can support yourself financially without having to work those 5 days, best not to focus on want you want, only what you can organise within your means.
I had a meeting with my boss about 6 weeks ago to let them know as much in advance as possible that I wouldnt be able to return full time
I'm sure you mean to discuss your flexible working request, because as others have pointed out, you have the option to request it, but not have it granted.
I thought my boss was a friend. She was only promoted this time last year when we were both pregnant and we've worked together for years.
Your boss should be treating you in an unbiased, totally impartial manner because she is your boss. What do you expect her to do, bend the rules and say "ahh for this employee I'm sure we can organise something" just because she's a friend / fellow mum? Businesses can't work like that. She can't be seen to set a precedent or seen to favour you because it would put her own professionalism in question. Don't you see that?
But surely, whether shes my friend or not, it would have been more professional of the company to not leave me waiting this long for bad news
I see that others have mentioned the legal obligations of the company wrt response times - and 100% agree that you should be treated fairly whether your boss happens to be a friend or not.
Apologies if this post comes across as a bit harsh, but your OP basically makes you come across as if your childcare has fallen through, and instead of working with your employer to facilitate a solution (be that working fulltime, parttime or leaving) you're focusing on:
- the fact that your mate boss isn't doing more in your favour and
- that you (basically) are refusing to go back fulltime despite having no right to do so
- whilst moaning about the fact that you can't be there to raise your little one
- whilst earning a comfortable amount of money to cover your costs (many working parents go back for very little profit, if any, just so their career / jobs remain in place until they start school).
So, a harsh welcome to the real world of working parenting, I think!