—2 Corinthians 13:7-8 (NASB)
There are many times in 2 Corinthians where Paul tells them outright that he loves them. It seems he needs to do this from time to time to remind them of the fact that just because someone tells the truth and even demands that they put the truth to work in their life, it doesn't negate love. As it's been often stated here, biblical love is defined by biblical truth. And regardless of feelings, emotions, and the depth of what Paul feels for his spiritual children, love can never be compromised by going "against the truth".