Jason met his boyfriend in a rather peculiar way: he was doing his usual rounds, disposing of the dregs of society with a couple of bullets and offering shelter to hapless victims when one of his victims began to...revive?
The easiest way to put it was that the bastard turned glowing green, and Jason had collaborated enough times with Justice League Dark to know that something supernatural was coming.
Before the whole process was complete, however, another portal opened and out stepped a pretty pissed off guy. The spirit that had just been born was intimidated by the new spirit and Jason could only watch dumbfounded as the twink destroyed the former serial killer with scathing words and scolding.
He was instantly smitten and began flirting with the rabid spirit. It wasn't long before Danny reciprocated his flirtations and well, Jason could tell it was the best thing that had happened to him all year.
On the other hand, the Batfamily was worried about Jason's constant disappearances and his sudden calmness. Fearing the worst (and seeing that they couldn't leave a matter unresolved) they decided to investigate, much to the chagrin of the Crime Lord who responded to their interrogations with deflections and continued to hide his boyfriend as best he could.
Danny thought it was a fun game and just went along with it. Tim was stressed and wanted to get it all over with.