I feel like my relationship is over 😞

So my finance and I just aren’t clicking lately.. we aren’t fighting but we are barely even talking. I love him and still want to marry him but we’re supposed to get married next month and I can’t keep living like this. I tried to talkto him about it several times, and he tells me he agrees and we will work on it and it’s good for Like a day then it goes back to the same old no communication and it’s just boring. What else can I do to try to work on our relationship? I know some of it’s me I just need ideas of cheap fun dates I could throw out there, or anything I can talkto him about honestly. I don’t want to lose him