My co-worker experienced "false peace." It's sort of like the peace Balaam felt or received after asking God over and over if he should go with Balak to curse Israel, after God had already told him not to go with him (Numbers 22:12).
After asking Him a few times, God said go ahead (Numbers 22:20) but He was not happy about it (Numbers 23:36). Balaam went with Balak and sold himself to do evil (1 Kings 21:20). Because he sought and followed "false peace" he became defiled. instead of being remembered as a man of God he is known as a greedy soothsayer (Jude 1:11, Joshua 13:22).
God has given us free will to do as we desire. He gives us freedom to go against his revealed will (as laid out in scripture) or we have freedom to do our own will. I've heard people say, Lord if you don't want me to do this please stop me. No, he gives you freedom to do what you want and suffer the consequences later.
My co-worker new God's will about divorce but decided to divorce her husband based on the desire for another man. She believed she had more in common with the new man. They shared the same goals etc., he could help her be all she could be. After she left her husband she discovered she was one of many women, her so called lover inspired!
So how do you know the difference from false peace and true peace. True peace comes from God. It's the peace Jesus spoke about, when he said "Peace I leave with you, my peace I give unto you: not as the world gives, give I unto you. Let not your heart be troubled, neither let it be afraid." (John 14:27)
False peace comes from the fleshly nature. Paul said, We have been called unto liberty; and we are not to use our liberty for an occasion to the flesh, but by love serve one another. For all the law is fulfilled in one word, even in this; Thou shalt love thy neighbor as thyself. (Galatians 5:13-14)
He also said, "Owe no man anything, but to love one another: for he that loveth another hath fulfilled the law. For this, Thou shalt not commit adultery, Thou shalt not kill, Thou shalt not steal, Thou shalt not bear false witness, Thou shalt not covet; and if there be any other commandment, it is briefly comprehended in this saying, namely, Thou shalt love thy neighbour as thyself.
Love worketh no ill to his neighbour: therefore love is the fulfilling of the law. And that, knowing the time, that now it is high time to awake out of sleep: for now is our salvation nearer than when we believed.
The night is far spent, the day is at hand: let us therefore cast off the works of darkness, and let us put on the armour of light. Let us walk honestly, as in the day; not in rioting and drunkenness, not in chambering and wantonness, not in strife and envying.
But put ye on the Lord Jesus Christ, and make not provision for the flesh, to fulfil the lusts thereof. (Romans 13:8-14)
He that loves another will not deprive him of his wife, of his life, of his property, of his good name; and will not even permit a desire to enter into his heart which would lead him to wish to possess anything that is the property of another: for Scripture, has said: Thou shalt love thy neighbor as thyself. (Adam Clarke's Commentary)
Let's learn to practice real love as defined in scripture!