In the meantime he has had second interviews with several other companies.
Several things are apparent from the way the situation has been phrased.
First, you speak of an offer of employment, a job , and not of a wonderful opportunity you are excited to have. I don't believe you are looking forward to your future with this company. Simply stated your job offer does not seem very appealing to you. If you are unemployed or in danger of losing your position, there may be some stress and pressure at play. How much depends on whether you are employed or not and how securely, as well as your financial picture.