Is it normal to be friends with someone you’ve slept with?

So I (F20) slept with a girl (F22) (let’s call her A) for the first time 7 months ago, we were really good friends at the time but after she stopped speaking to me because she thought I had feelings for her (I didn’t I just love and care for everyone around me) But this experience made me realise I was a lesbian.

I end up getting a new girlfriend (F20) and she is very inexperienced I was even her first kiss.

I made friends with A again right before my GF and I got together and I understand how A had misinterpreted things and why she reacted the way she did.

A and I are both autistic/adhd so we understand eachother and we don’t have to mask so the friendship is really valuable to me. We also have a lot in common! However we have absolutely no romantic feelings towards eachother.

My gf knows about it and she gets along and has a lot in common with A but I feel like she’s just uncomfortable with the A and I hanging out solo which I understand completely but I don’t want to distance myself from A. Im unsure what to do