Is this a red flag from my boyfriend?

We havent seen each other since last friday, into Saturday afternoon, because weve been busy.. we did have some free time but just decided to get things done that we needed individually. Tonight we have plans to get dinner and see a movie snd then i will probably be spending the night. The thing is, he knows im free all day today, but doesnt want to eat dinner until 6? Which is only an hour 1/2 before the movie starts. At first he said we can hangout at 4-5, but he just pushed it back to 6. Its like he doesnt want to hang out with me this morning? Or maybe hes just busy? Im doing laundry anyways so i couldnt even see him for a few hours. But is this a red flag? We have a great relationship otherwise. And he tells me i can come over whenever i want and i will never bother him and hes offered to get me a key too to come when i want. But idk is this a red flag that he doesnt want to spend all day with me on my 1 full free day of the week???