I am afraid that rights on the breakup of cohabitation are very different from when the parties are married. Even with a long relationship such as yours you will not automatically obtain an interest in property in which you are not registered as an owner. No more will there be a continuing right of support.
There can be exceptions to the harshness of this law when a person has been misled or promised an interest in property. I would need considerably more information from you however before I could advise on whether this might apply in your case.
The position is different with regard to your twins. They have an ongoing right to maintenance from their father although there is no stipulation that he must provide a home.
Click on any Q to read the answer.
• Get a divorce
• Have contact with my children
• Make a small claim
•Write a letter of claim
•Obtain a Grant of Probate
•Get legal advice and help with my case
•Make a Will
•Change my Name
•Prepare a legally binding agreement
• Sever a Joint tenancy
• Prepare a Partnership Agreement
• Sell a Jointly owned Property
• Appoint a Guardian for my children