Are you feeling used?
Matt 5 v 44: But I say to you, love your enemies, bless those who curse you, do good to those who hate you, and pray for those who spitefully use you and persecute you.
How do you use your freedom?
Gal 5 v 13: For you, brethren, have been called to liberty; only do not use liberty as an opportunity for the flesh, but through love serve one another.
I think this means that we were set free from the 'law' through the ultimate sacrifice of Christ on the cross who saved us through grace and not works - in that freedom from the 'law' we have to be careful not to use that freedom to do whatever we want thinking Christ has paid the price. He has - but we cheapen His sacrifice - by behaving in this manner. In awe, we should use our freedom, because of such a sacrifice, to serve others, thereby showing others just a fraction of His great love for us.
Both scriptures speak of love - someone trying to use you? - pray for them in love! Use your freedom in Christ, to serve one another in love!
In doing this you are being USED of God. The best position to be in!
Linking with Joan at Reflections of His grace