Darling Waves - I am so sorry that the revelation has come so quickly and so harshly. But I can answer one question for you - the reason he keeps telling you he loves you is that he's hoping to get back into your life, with your money and your owned home. He thought he had a good ticket for life there - and much of his vitriol now is because you've taken that off him.
So I'll say it again - he loves what you have, not who you are
He isn't fit for you to wipe your feet on - they'd end up dirtier afterwards.
You did what you thought was right for you, the baby and him (the bastard) at the time - and at the time it was ok. Please just write that off, and don't allow these later revelations to colour that event.
But from now on, you give him NOTHING. NOTHING AT ALL. Because he deserves less than that (if that were possible).
So glad your snuffler has taken well to feeding and much much sympathy on the cracked nipples and after pains - have you some Lansinoh in the house? If not, do get some - even if it means asking lovely friends or even TB to get it for you (ah, she's going to hospital though, so she can't)
Remember we are all here for you whenever you need to rant or moan; we will do whatever we can to support you.
Love to you and your baby Caspian, and the other two DC xxx