Because something is wrong. Check for shorts and, if it is a GFCI, also check for ground faults and leakages. It is also possible, in the case of a GFCI, that an inappropriate load, such as a...
Leave or tell them you are going to leave so they won't get a divorce. That should snap them out of it. Otherwise you are not the problem, people just don't get divorced for this reason, it's about...