Feel new to this :(

Me and my husband have been married for 6 years have two beautiful children 4 years old and  1mo old .... He has recently gotten an opportunity to work in OHIO  for a two year job getting very good pay to where I don't have to work .... Anyways off topic .... So Saturday he went to this club/bar thing with his coworkers ... Didn't tell me until I fount the transaction history on my statement yesterday and asked him ... The thing is infer like a jealous wreck I mean should I be mad or should he be okay cause he said he only went for some drinks with his boss and coworkers ??   I feel like. Firsttimer ... What are your thoughts