Which I reckon you could also apply to different people outside your relationship. Open relationships ... they may sound fun - but we never know what the other person is feeling about them. Not to mention our own feelings - we may say and think it is ok at first ... but is this our final thought? Will we change our mind? Things to ... well think about for sure.
Love has not borders - well I reckon passion is the one with no borders. But love? Well depending on the person it actually can be finite ... and for most it is ... you love one person usually ... they love you back (hopefully) or if you are unlucky, you pray you'll find someone else ... someone who does appreciate you.
Now having intimate sexual encounters ... with "strangers" is one thing - does this give anyone a free pass ... even if they have been given the ok from the partner? Very tough to say ... until you actually are in the situation ... try to be civil ... love is in the air ... but it can also go up in flames if you are not watching out for it.
There is nudity in case you were wondering, there are somewhat explicit situations ... but if you expect this movie to ... well excite you ... it may fail to do so ... because it does concentrate on the personal dilemmas ... and issues. Plus relationship and all that stuff.