One significant interaction out of many

#1
So I am in the process of interpreting a set of results.
I conducted 6 regression analyses to determine if a variable acts as a moderator. One of the 6 interaction terms was significant. Should I attempt to rationalise this in terms of theory, or should I argue that the hypotheses were not met according to just one significant value?

Thanks for any help
 
#2
So I am in the process of interpreting a set of results.
I conducted 6 regression analyses to determine if a variable acts as a moderator. One of the 6 interaction terms was significant. Should I attempt to rationalise this in terms of theory, or should I argue that the hypotheses were not met according to just one significant value?

Thanks for any help
Is the dependent variable the same for all the regressions? If so, was there a particular reason for running 6 separate regressions as opposed to one with all the terms?