Blaming me for his loss

So my boyfriend is a trader and today he lost all his profits by accident. He said he had been gathering it for his birthday next week on Saturday, now he needs $50 to restart the trade.

I genuinely can't help him right now for personal reasons.

But he keeps talking like its my fault and like i'm a useless girlfriend since i can't help... I feel so awful so much i've even been apologising.

Is this any fair?