AITA for accusing my roommate of "cheating" on us?
(a/n: for martyn's wild life aita)
For context, I (29M) am roommates with my best friend (31M), who I'll call G, and a mutual friend of ours (40'sM), who I'll call S. We only recently became roommates, and are still adjusting to living together. S and I get along really well, and I thought G was happy being our roommate too but now I'm not too sure.
So basically, we needed some ingredients for something but we didn't have any, so S and I went out to go get some together while G went out on his own, which I thought was odd, because he could have gone with us.
We ended up getting the ingredients we needed from some friends of ours, and we even ended up getting a cow too, which we also needed! When G got back he didn't tell us where he had gone, but everything still seemed okay to me, until later on, when he, again, said he was going off on his own to go get some supplies. This felt really weird to me, and I asked S if he also thought it was weird, but he didn't at first.
But then G came back a little later, saying he had forgotten something, and I stopped him and asked him to be honest with us about where he was going, and if he was hiding things from us. He was confused, and said he was just going to get supplies for us. S believed him, but I still wasn't sure. We got into a bit of an argument over him leaving on his own, and he was the one who said I was accusing him of "cheating" on him even though I didn't say that specifically, but I do kind of feel like he WAS cheating on us as roommates by leaving so often.
G went off on his own again, and S and I talked for a bit afterwards. Then our friend M came over. M mentioned that he and G had been working together and that he and G had gotten some cows together, which shocked me as G had never mentioned getting any cows at all. S accused M of trying to make G look like a liar, because M is known to try and stir drama sometimes, but M said it was true and to ask some other friends of ours as apparently they had STOLEN the cows from them. We told M to stay here until G got back because we wanted to hear the truth from G.
When G got back, we asked him if had gotten cows. And he immediately said he had! We got upset at M then for trying to make G look bad, but G explained that they had worked together to get the cows. S and I decided to believe him, but M pointed out how quickly I was to accuse both him and G, and G also called me paranoid. We ended up moving on from that and got into a slightly related argument with M which also ended with M calling all three of us paranoid.
Am I really being too paranoid? I feel like I was justified in feeling weird about how G kept leaving S and I. AITA?
update: I ended up talking with G some more, and he told me that he DID tell me he had gotten the cows and hidden them, and I realized I had thought he was talking about MY cow that I had also hidden.