Did I make a mistake with not inviting people to our wedding?

Hey!

I am marrying my girlfriend in june and I invited a few friends of mine to my wedding.

My partner (female) has about 6 close friends and we wanted to stay around 50 people with family and friends for our wedding.

The problem I have is that I had to cut out a few people that I know but have nothing to do with since a few years. I feel kind of bad, because 2 girls in my friend circle are close with my best friends and I like them as friends to talk to but personally I wouldn't have anything to do with them without my friends.

It's a weird situation, but I didn't invite them because my partner and I wanted to keep it at the limit of 50 people with family and friends.

I feel bad. Today I was at a party and I couldn't talk about the wedding because 7 friends that were invited were there and the other two who werent invited would be left out so I avoided it and was happy nobody talked about the wedding invitations. I think the other two know they aren't invited even though I enjoy talking with them when we go out...

I hate weddings...