There is a saying that says: Too much of anything is bad just like too little of it.
Obsession comes to mind when we discuss it in terms of love. What is the threshold of loving that would not choke both individuals emotionally in a relationship? Are there clearer signs to warn us that we are nearing the state when the word enough could end everything?
Regret is always felt in the end. Perhaps, it would be too late to turn things around when the consequences of our earlier decisions would be beyond our control.