It’s more complicated than that. MEPs do not represent countries, so you can say that most MEP from $country were for or against, but that would not necessarily be the position of the country’s government. For that you have to look at what happens in the council of the EU, which is composed of government ministers.

It is not exceptional for most MEP from a member state to be in the opposition at the national level, particularly in contexts where it is seen as a protest vote. Turnout is usually low for European elections, so they tend to swing a bit more than national elections.