ADVICE PLS

Hey ladies I need advice! I was with my boyfriend last night on our anniversary we had sex the normal and got high (weed) lol & I was super high and my boyfriend had my phone and last I seen he was on my Snapchat I couldn't see what he was doing and I hear a video I glance and I thought it was my old friend Sammy (he's gay btw) I haven't hung out with him in over a year and he has a Snapchat but it wasn't him it was my boyfriends video I took a video of him earlier and he was looking at it and I immediately said "Sammy omg" and he's like what? He got super mad at me and hasn't spoke to me all day what do I do? Please ☹️ I tried to explain to him btw