A trusted family law attorney makes a distinction between separation and divorce while explaining the two routes you can take to settle any issues like equitable distribution, alimony, child support, and custody.
Separation is what happens first, this is when the two parties begin living under separate roofs. Sometimes property distribution, alimony, custody, and child support can be dealt with through a separation agreement. However, for the agreement to be enforceable, both parties must agree to it. If an agreement cannot be reached, then a lawsuit must be filed. Litigation is expensive and stressful so a separation agreement is always preferable if possible.
Divorce is actually what happens at the very end and is what says the marriage is officially over.