So, I was doing the mission 'Unlikely Valentine' and finally I was escaping the vault. Malone was counting down from ten, and so I rushed out of the building as fast as I could. Thinking to find my companion and Valentine out of the station. But after exiting the station I found that only my companion survived and teleported out of the building.
I re-entered the building, but I only found Malone and the two triggermen. I rapidly killed them and I looked for Valentine. No corpse, no messages in the Pip-Boy, nothing, he just disappeared. So, I entered the Vault and I went to office where he was being captured. Nope he was not there either.
So where could it be? I mean, I don't really know now. The mission says to follow Valentine, but I don't know where he is and the minimap does not help at all!
Is there any way I could find Valentine?