Sharing a bed with a man I don’t like.

So we’re going to Paris together because I’m attending a concert and since he was always talking about going to Paris I told him he could come with me. The studio we rented has only one bed and it’s a sofa bed. It’s fine for me because I’m -100% attracted to him and have been telling him all about my crushes and I even told him I prefer women lately. He was kinda bummed out but didn’t say anything about it. The whole friend group thinks we’re dating because he stayed at my place and I stayed at his when we were traveling to each other cities (it was cheaper than a hotel for me in his hometown and since I have a spare room at home I returned the favor when he came). It’s so awkward because to me he’s not attractive at all which is why I’m okay with doing stuff with him, I have 0 sexual tension or attraction, but I sense he feels otherwise. So I really REALLY don’t want people to think we’re together and I don’t want him to try anything with me during the trip. It would not only be harassment but also break the whole friendship on my end. How do I let him know this without hurting his feelings?