I talked to Rober the guard but didn't give him money or anything.
Instead I lockpicked the wired gate and the door after.
Now the whole family is hostile.
I tired sleeping in megatown for 3 days but no joy.
Is there any way I can make them non-hostile again?

So, you lockpicked the gate, that he was standing in front of and guarding, and then the second door, while he stood right there and you're wondering why they are all hostile? The Family will always be hostile to you from now on. Reload a save and pay your caps.

Don′t be so sure about that bro


1. Go the the family
2. Bring up the console by pressing "§"
3. Click the hostile characters
4. Write this in the console "player.setrelationshiprank 4"
5. The family now likes you!!

And if he's not on PC, bro?

Just kill the entire family, you can still complete the quest that way.

Who said he isn′t?

I ended up killing the entire family after being admitted and going through some of the conversations with their leader. Even talked to the west dude a couple times after releaseing him from solitary. Did multi reloads and still ended up being hostile with Arefu so that I couldnt complete the bloodties quest.
Strange thing was I wasnt sure what exactly tipped the scales seeing how it seemed very delayed after the events of killing the family.

I even spoke with Lucy again later , but she acts like nothing ever happend.

Oh well .... thats just how the cards played out this time .... I think im gona be a canibal next time

It is not casual crime. The faction is scripted to become ennemy of the player for good if you attack any member of the family, and arefu citizens are parts of the same faction, so they become hostile too.
Same if you ever had the idea to kill the guard at the temple of union, even undetected. all the faction will become ennemy forever.

Reload an earlier save or use console command.

Or do what I do. Kill the whole family and take great pleasure in obtaining Vampire's Edge.

IM A CANNIBLE!!!!!! But i still killed all the people in Andale. XD Hahahaha! I turned on my own kind.

That quest is kind of glitchy anyway. I made peace with the family and got the West kid released...then when I fast travel to Arefu, the guy guarding the pass is being attacked by a mirelurk and dies in one hit. Not only does this make me fail the quest, but it also turns all of Arefu hostile against me. They must think I was conspiring with those mirelurks all along....the lone wanderer is tricky like that

This quest is definitely touchy. I am still working on making the people in Arefu non hostile towards me. The reason they turned hostile was the stupid guard The Family sent fell off of the bridge and was killed by an Albino Radscorpion. It did not affect The Family at all but Arefu hates me. I resurrected the guard and now I am working on making each npc in Arefu like me again. What a pain.

Reload your last save that you had, before they became hostile. Even if you did pick the gatelock successfully without him looking, you don't think that he'd see you, walk by, after you'd picked it? Reload, then either pay your caps or use the speech check(Hint: If you keep failing the speech check with him, keep reloading until you are successful. It will eventually work).
I guess you're out of luck, if you have no past reload saves, from then, though. :/