Am I in the wrong? Family troubles?

I lent £150 to my step mum the other day and I’m certain she said she gets paid today. So I politely messaged asking if she could transfer it over and she got mad. Apparently, she gets paid in another week and I even apologised for getting the wrong day. And even when I did ask for it, I was polite, I wasn’t demanding at all.

Anyway, she got really defensive and She said “it’s only been three days and your already asking for it back” and called me unbelievable. Despite the fact I even apologised if I got the day wrong and it wasn’t like I was demanding it at all. Apparently she’s also angry at me for telling my dad, but I only told him because I was going to let her keep some of it as a gift and I said him to she can just give some of it back.

I’m really upset about it and she hasn’t apologised at all, she’s convinced I’m in the wrong. What do guys think? Because I feel like it’s my fault
Am I in the wrong? Family troubles?
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