am I a bad friend?

[beyoncesweave]

I had a group of friends over on Saturday to see my new house - nothing special just a drink and catch up.

I realised that I had text one friend to invite her but accidentally text her old number. I just assumed she had forgot to reply to my original invite.

I've sent her an apology text the same evening and I've heard nothing since.

Me and my friend have drifted apart over the last year, no big fall (or any fall out) just general every day life stuff where everyone is just busy with their own lives.

Am I a bad friend?

No of course you're not. It was an accident. However that is me saying it as a stranger on the Internet.
If I was your friend I don't think I'd see it like that. Oh you text the wrong number. You don't look for reason when you're not included. All she is going to see is. They all had a gathering and I wasn't there.
I think the same. You would do. It's only natural

I would call and apologise. It means more than a text