Help please

I dated my co worker for awhile (6months)

He told me he loved me

Met and even made a room in my place for his kids

We were talking about Christmas plans with his kids (currently November)

He told me loosing me scared him more than titles

And he is the first person that made me realize i want a true relationship

At the beginning we agreed we wanted to be in a situation ship and eventually move into a relationship but then his children got involved and it moved itself into a relationship

Titles and all

Even gave me a ring (non marriage just a symbol for the relationship)

But after a great couple of months

He ignores me for two days

And then randomly says he is not wanting this

He says he still wants to be friends but i cant seem to get over him

What should i do other than getting a new job?