There are too many missing words and irrelevant things in that long story to make sense of it. No one here knows if they lied.
Just answer this.
Was a condom used for anal?
Well, you obviously had a risk. The thing is, you know one of them and he said he's on prep and he's used condoms with you previously. Why would he lie? And the second guy? Well, I don't know. Chances are he really has tested and is not hiv+. Regardless, the risk is quite SMALL. Less than 1 percent transmission rate for a one time sexual encounter. You'll need to test at 28 days with a 4th generation DUO test but would expect it to be negative. Honestly, your 'friend' who put you in this position sounds like a jerk for it so I'd not get together with him again.