my friend is accusing me of stealing her roommate's locket and i think i'm being set up

Last weekend we had a house party at Jess’s place—about fifteen of us, pretty chill, music low, everyone just catching up. I’m Maya (24F), Jess (25F) and Priya (26F) are both mutual friends from uni. We’ve known each other about two years now. Anyway, yesterday morning Priya posts in our group chat—the big one with like twelve of us—saying that Jess’s vintage gold locket is missing. She attaches a blurry photo from someone’s phone, taken down the hallway, and it shows a person who looks like me near Jess’s bedroom door. Priya writes: “Maya was the only one seen near the room all night. She’s the only one who knew where Jess keeps it.”

I freeze. I barely went upstairs that night. I remember being in the kitchen most of the time helping pour drinks. I immediately private-message Jess: “Hey, I swear I never went in your room. I don't know where that photo came from.” Jess replies in about ten minutes, just: “We need to talk.” Not angry, not sympathetic—just flat.

I’m panicking. Then one of our other friends, Tom, sends me a screenshot from a private chat between Priya and someone else. In it Priya says: “I’m setting Maya up. Jess is helping me. She’s been too close with Jess lately and I’m sick of it.” The timestamp is from before the party. So this was planned.

Now I’m furious. I post in the group chat a full timeline of the party night. I include my phone location data from Google Maps—it shows I was in the kitchen from 9:30 PM until midnight, never once upstairs. I write: “I never entered Jess’s room. I never touched her locket. Please check the facts before you ruin my reputation.”

The chat goes silent. Then, about an hour ago, Jess finally responds. She admits she helped Priya because she was jealous of how close I’ve become with some of the guys in the group. She says the locket was never stolen—it was in her own coat pocket the whole time. She apologises, but it feels hollow.

I’m supposed to just forgive this? They tried to get me labelled a thief in front of everyone. And the weirdest part? I’m also gay, and Priya has made snide comments before about me “hovering too close” to Jess. I think homophobia is part of why she targeted me—like I was a threat. Am I overreacting?