Loneliness leads to bitterness. Typical reactions are to suppress the emotions, and channel the loneliness into bitterness and anger. You should try not to let this happen. Loneliness leads to remarriage. Another typical reaction is to find another woman quickly.
Many men remarry within one year of the divorce.
Statistically speaking, this is usually too soon for them, and for their children. Take your time. Therapists suggest that you admit the loneliness, and take time to adjust. Listen and learn from the kids and from your separated spouse about what they want and need now. One thing that happens to both men and women is that old friends abandon them.