Upvote:5
Yes. As long as the UK remains in the EU (or, more precisely, as long as it continues to participate in the EU freedom of movement scheme), you do not need a long-stay visa. In fact, if my parents' experience is any guide, the consulate will refuse to issue you a long-stay visa. (My parents are both US citizens, and my father is also a Dutch citizen.)
Strictly speaking, if you're staying for longer than 90 days, you are supposed to apply for a carte de séjour de membre de famille d'un citoyen de l'union, but practically speaking, if you are not planning to stay in the same place in France, or if you're not going to be in France for longer than 6 months or so, this will be more trouble than it is worth. The penalty for not applying for one within 90 days of arrival is that your subsequent application costs €340 instead of being free. However, if you make no subsequent application, you won't have to pay the €340. If they find you out as you're leaving the country, they can't very well force you to apply for a carte de séjour.
That has been my parents' experience. They have stayed for longer than 3 months in France almost every summer for the last few decades, and they've never had a problem beyond a few wrinkled eyebrows at exit control. Once the border officers realize that they are married, they stamp my mother out and that's the end of it.
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