Unfortunately, when christians speak among themselves, they often use terms such as this that outsiders do not understand. I have encountered those who thought poorly of another who had used the term (spiritual warfare), thinking him a confrontational person out on a crusade to aggressively evangelize the unbeleivers and skeptics. This term has been the source of much misunderstanding.
Now to be fair, there have been cases of overzealous crusaders (and of course, the actual crusades fought with the muslims 1095AD-1291AD), but the bible makes it clear: "we fight not flesh and blood, but the principalities and powers of the air" - Ephesians 6:12
So remember, don't be too quick to judge. Someone who seems scary might have been misunderstood, and someone who seems cold to you might have misunderstood you.