Hey OP. It's ok. Take a breath. He's talking absolute bollocks!
In most cases, unless the marriage is short, or a few other extremely rare situations, the court will start with a presumption of 5050 for child care and finances.
I'm assuming if you work part time then he earns more than you and potentially has a larger pension. Think about things like savings or stocks and shares, and even cars. They may be 'his' but in the eyes of the law they are marital assets so you deserve a fair proportion of them (nominally 5050).
Go and see a solicitor asap and get some mediation arranged. Strongly encourage him to see a solicitor too as they will likely set him straight.
Regarding the house, you could end up with the majority of it, for example in exchange for letting him keep his full pension. It's not clear cut, and unless he can afford to fully buy you out you will need to sell the house. It's just a house. A fresh start can be a wonderful thing.
Whatever you do from now GET A SOLICITOR, and remember your stbexh is no longer your friend. His advice is to be completely ignored from this moment on.
Good luck! It's going to be a hard few months but you'll get there.