My husband is so ungrateful

I'm not officially married. I fell in love with my husband way back in school at HSC.

In 2008 he went to Iraq and I joined an institution. He returned in 2010 and we decided to stay together.

In 2012 I had my first born and left for Kuwait in 2013. While in Kuwait, I used to send him money which he used to spend responsibly.

I returned and gave birth to another child and left when he was 5 months.

The problem is that last month I sent my husband sh500,000m and he sent me a message asking for more money.

When I asked why he needed the money, his response was, "Maybe you don't love me."

My husband is not the one staying with our children and neither is he paying rent because we have a home and he has a job.

It's now two week ever since I refused to send him the money.

He has resorted to ignoring my messages and calls.

He even refused to send money to our children.

I have been supporting this man in all aspects.

What should I do?