You just showed us that your /home was on /dev/sdb5 not sdb3 ...
Is your home partition mounted as expected ??? You may well be
looking at the mount point alone...

Check output of "df" does it show /dev/sdb5 mounted on /home ?

If not, you might not have the correct UUID. Just try the following
command : sudo blkid . It will show the correct UUID of your
partitions. Correct your fstab and do a "sudo mount /home". It should
be OK!