PiHole selected wrong interface and static ip

I have a Pi running as a router with it getting an IP address from a phone it's tethered to via usb. On eth1 I'm not sure what settings to put in. I selected eth1 as my interface, but then it got the Pi's ip address from usb0.

pi@raspberrypi4-8gb:~ $ ifconfig
eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.220.1  netmask 255.255.255.0  broadcast 192.168.220.255
        inet6 fe80::a5c0:39df:8a45:3937  prefixlen 64  scopeid 0x20<link>
        ether dc:a6:32:b0:20:8d  txqueuelen 1000  (Ethernet)
        RX packets 593532  bytes 98095312 (93.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 823995  bytes 893290991 (851.9 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 24987  bytes 1677088 (1.5 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 24987  bytes 1677088 (1.5 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

usb0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.42.80  netmask 255.255.255.0  broadcast 192.168.42.255
        inet6 fe80::ca7d:1c58:b2ac:bf81  prefixlen 64  scopeid 0x20<link>
        ether fe:7d:a8:5e:8a:ef  txqueuelen 1000  (Ethernet)
        RX packets 807039  bytes 905252286 (863.3 MiB)
        RX errors 41  dropped 0  overruns 0  frame 41
        TX packets 487534  bytes 109953220 (104.8 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlan0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether dc:a6:32:b0:20:8e  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
[i] View the web interface at http://pi.hole/admin or http://192.168.42.80/admin

  [i] You may now configure your devices to use the Pi-hole as their DNS server
  [i] Pi-hole DNS (IPv4): 192.168.42.80
  [i] If you have not done so already, the above IP should be set to static.

  [i] The install log is located at: /etc/pihole/install.log
  [✓] Installation complete!