Hi Dvora, and welcome to the forum.

OK, the French don't have a big reputation for being warm and open with newcomers. France is very family oriented and it can be hard to get to know folks if you don't have family in the area. However, depending on where you wind up, there are ways of integrating yourself into the local community. (See especially #4 in my list of "must dos.")

Associations are a big deal in France and if you can find a local group that strikes your fancy, it can be a great way to get to know folks. There are a number of expat groups in the south of France, both American and British, which is a good start while you start to learn the language.

I'm not sure what your visa status is as the wife of an EU national. Some folks on the forum here have said that you should be accorded the same rights as your husband, but in practice I have not found that to be the case. (I had considerable difficulty getting legal even as the spouse of a French national in France.) But at least ask at the French Consulate about getting a visa. If you wind up needing one, you'll have to get a carte du séjour, and if you get one of those you'll be eligible for those 400 hours of French lessons your first year in France. Another way to get to know some people in the area!

The French also have a tendency to surpass their reputation when it comes to one on one experience. In some ways, they are a very reserved and almost shy people (gross generalization, but if it fits...) and if you remember that and don't overwhelm people when you first meet them, you could find yourself plenty of French friends.
Cheers,
Bev