Is OTHER wrong in the post ? POST : I really need some perspective here, because this is causing a huge problem in my relationship.

I have a friend that I used to be best friends with in elementary school. About 4 months ago (when I was single) we found each other on Tinder and decided to hang out and catch up. We had a really great conversation for about 3 hours in a public place. Afterwards, he kissed me, and things escalated to another sexual activity - though not outright sex. After that we decided to keep in touch as friends, and haven't spoken since. 

Fast forward to today. I'm in a new relationship, and he knows about my sexual history. My friend texted me and told me he'd be coming to my city and asked if I wanted to get coffee. He even expressly said that sexual stuff wasn't necessary (which may sound weird, but we had left the possibility open the last time we talked 4 months ago). I told him I was seeing someone now, so sex stuff was definitely off the table. He was very supportive, but still wanted to meet up because we're friends. 

My new partner thinks it's absolutely unacceptable that I would consider meeting up with this friend, and he doesn't see why I would find value in maintaining a relationship with said friend. He says that no girl would consider staying friends with someone who would be open to the possibility of having sex with them. He's basically saying that nobody should ever be friends with people that would fuck them if both parties were consenting. Again, his point is that the only people you should be friends with are people who would never conceivably fuck you under any given circumstances. From my perspective, I really liked connecting with someone from my childhood, and the sexual stuff was more of just an impulsive afterthought that I would never do when I was in a committed relationship. I understand his concern, but I want him to trust that I would not behave unethically, especially since I've been completely open with him and have not tried to hide anything. 

Please let me know what you think. AITA here?