What should I say ?

I don't want to sound RUDE or mean ..

But every time me and my fiancé TRY to go out on a DATE or go out just him me and our daughter.. as a family since we're busy all week with work and school we need a lil family time just the 3 of us or just me and him time a DATE night we hardly get that now since we have a 1 year old so times we do get a date I'm happy .. his family always TAGG along and they INVITE THEMSELVES TO WHATEVER WERE DOING ..like last night me and him we're going see a movie just us 2 I got all dressed up because finally A DATE NIGHT US TWO and his little bro Asks what movie u guys seeing and we told him then he asked his mother for money and a few mins later he was in the car I was mad I told my fiancé really I thought this was our time to be alone I NEED TIME ALONE WITH MY MAN IS THAT BEING MEAN ? 😭😭😭 I even talked with my fiancé about having his fam invite themselves on our dates or small lil fam things with us 2 and our baby (mind u even when we go to the mall his fam will invite themselves and then RUSH me when I'm trying to Shop ) it's like none told u to come I'm shop and take my time lol .. if they try to invite themselves again what should I SAY BECAUSE I HAD ENOUGH OF THIS .. I mean I love his fam but me and my fiancé need US TIME AS WELL AS A LIL FAM TIME JUST US AND OUR DAUGHTER!!