Boyfriend ignoring me?

Had to cancel on a night out with my boyfriend of 15months because of severe period pain (I have endometriosis which makes me bedridden for a few days).
I had been messaging him throughout the day telling him I had been crying laying on the floor and was so sore. When I said I wasn't able to go out that night to a small concert at a bar (tickets were $40 each) I asked if he could take his brother or someone else he said he couldn't and that it was a waste of money. I replied that I'd send him the money and that it wasn't my fault and I haven't heard from him since.

Not sure what to do.
Any advice?
Boyfriend ignoring me?
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