I don't want to join the bandwagon, but I got the friendship bug too - my founder never became Good Friends with one of Malcolm Landgraab's girlfriends, his first, Arabella Stump. The game said they were impartial even with the green bar filled 80% so I counted it - it wasn't an official Dynasty.
I think the bug only affects homeless townies - Cassandra Goth and Liberty Lee become Good Friends easily with my founder, so pre-placed Sims aren't hit with the bug. I dunno, I may need to see if any other pre-mades get the bug.
In the meantime, I suggest you show the green bar to the mods to prove they are at the requirements for Good Friends and hope EA puts out another patch soon. Maybe we should spam their mailboxes to full with this complaint to alert them that there is a problem...
On the bright side, I think the cooking bug is fixed. I haven't had a case of dropped cooking actions since the patch.