Is my influencer friend secretly using my ex’s stuff? Should i confront?

Me (19M)my girlfriend 20F (now ex) gave me her VICTORIA's SECRET LOTION before we moved to new city for college. the lotion was a sweet gift, she has used twice or thrice from that bottle and gave it to me. I never actually used it, though. I just kept it as a memory of her, One of my female freind (v famous influencer)lets name her JAMUN so she used to come over to my flat to hangout, While my eyes are away , I saw her many times checking out the lotion bottle, She would stand near it, even run her fingers over it, but I didn't think much of it initially. Then, one day, I walked into the room and caught her sneakingly using the lotion and she was like " arey bas aise he dekh rahi thi" Month later, my flatmate and I went on a trip for about 3-4 days. Our flat doesn't require a key, just a password to get in, and except our flatmates few close friend know the door password Jamun also knew it...When we returned, I immediately noticed that the lotion was gone from its usual spot. At first, I thought maybe I had misplaced it or it had fallen behind something. But after searching everywhere, I realized it was truly gone

Fast forward to 7-10 days I met Jamun at a party and she smelled exactly like the lotion exactly like my ex's scent and this happened quite a few times when i actually start noticing . I wasn't sure how to ask or if it would be too awkward. But the more I thought about it, the more suspicious I became., though She's a pretty famous influencer, making a lot of money, so why would someone like her bother stealing a 4k lotion? It just didn't make sense. I didn't want to confront her over something that small, especially since it could make things uncomfortable