Router in packet tracer says i'm overlapping an address that i didn't input.

I'll keep it short. Working on a simple topology in packet tracer for review of CCNA 1. The network has a router on a /30 network( 192.168.1.208-192.168.1.211) trying to assign the two available addresses to the gigabit ethernet ports. G 0/0 took address 192.168.1.209 fine, however when i try to assign G 0/1 with 192.168.1.210 it says im overlapping with 192.168.1.208 which i don't get because i accounted for it to be that network address.

feel like im missing somthing small here.