Is simply following someone classed as "trolling"?

So today I was a bit bored, didn’t fancy planning a whole flight and doing everything by the book so I just grabbed an F-18 and whizzed around playground for a bit VFR.
Thought it would be fun to follow a larger jet so chose someone at random in an A340 and tried my skills at shadowing them, getting to within a few hundred feet but not overtaking or intercepting them (easier said than done as the fighter jets don’t have A/P).
My question is would this qualify as “trolling” ? Have had it done to me before and actually don’t mind as long as they don’t cut in front of you or do anything stupid. It can be quite fun, but I wouldn’t want to spoil someone else’s.
Thoughts anyone ?

I’d say it’s annoying but certainly not trolling.