What is the maximum relationship level with Johnny? (minor spoilers)

[Nux]

Is there any way to get over 70%? I already did 4 thing that should have put this to 100%, but didn't :/

1. Getting all Johnny's things. Didn't do nothing. I hoped it would at least bump our relationship 5%.
2. Getting Samurai bootleg. Again did nothing. My expectation would be at least 5% up.
3. Finishing Kerry's story. That was quite a lot of work. I thought that would be 10%.
4. Swedenborg's mission. I mean come on... Johnny was ecstatic when I changed the bot's algorithm. That should give me at least 10%. It did nothing.

Is this a bug or just overlooked? Maybe other ways to go over 70%?

 

[lostlogic]

I'm really curious about this too. I know the percentage goes up to 90% some time during the final mission / ending, but I'd kind of expect it to be able to get to 100%

 

[CTPhipps]

I don't think so.

Which is why I think it'll be DLC.

 

[Witzzard]

Nah... as far as i remember you reach 100% in the Temperance ending.

 

[hulkman2456]

Make sense the only way to reach 100%. Is if Johnny takes your body.