I need some advice.

This is a weird situation . ive been with my boyfriend for 4 years. Neither of us ever want to get married. Im fine with our relationship but there is a problem. We lived together for 3 years and we fought alot. We both worked full time. He made a drastic decision " to save our relationship" by essentially kicking me out and making me get my own house. I was devastated But i did it anyway. Nothing has changed in our relationship. I pay rent for a home I sleep in MAYBE 3 NIGHTS A MONTH. I work from home so im here at home hoise during the day...and when he gets off work he expects me to come over. He has two kids from a previous marriage and I do everything for them. Feed them. Cloth them. Take them to school. I clean his house.i cook them meals. Why do I do this you may ask? I mean, he did kick me out..

I make HALF of the money he makes and now my bills total more than his bills. I texted him today and said " I cant afford to live here anymore"- being that my rent is almost a month late now.

He opened it, and left me on read.