If you want to get out of the date because you realize that you don’t really like this guy and you have changed your mind on going out with him as a result, your best bet is to be honest with him.
You can apologize for accepting the date in the first place but then you will have to let him know that you are no longer interested in going.
This may be hard for you to do but being direct is the best way forward.
If you simply find some kind of excuse, he may believe that you like him and will keep trying.
If you try to ghost him, he may not get the message and keep hounding you for that date.
In essence, you would make your life a living mess.
Is that what you want?
You should understand that most people actually prefer honesty above ambiguity no matter how much they may have been hoping for a different outcome.
Being honest allows that person the opportunity to get over you a lot quicker than if you were leading him on with false hope simply because you didn’t have the courage to tell him that you weren’t interested anymore.
When you tell him that you are no longer interested, you have to be clear about it.
You shouldn’t be so ambiguous about it that he thinks that you are still open to going out on a future date.
You should close out that possibility by simply letting him know that you appreciate his offer but you are not interested in going out on a date.
Yes, you are worried that you will hurt his feelings especially after the fact that you initially agreed to go out on a date with him, but you have to get over this.
You are not responsible for how he handles an issue.
That is his responsibility.
What you are responsible for is in how you present the message.
Being clear and honest is the way to go.
If you are still unwilling to be this honest about getting out of a date, there is another way you can go about it.
You can ask him if it is alright if you brought some friends along for the date. He may ask you about why you would want to do this.
You could use this opportunity to tell him that you don’t want to give him the wrong impression about the date and you would much rather meet him in a group setting.
He may ask you whether you like him in a romantic sense at this point.
This is when you could kindly tell him that you don’t, however, if he is willing, you would love for him to get to know your friends and vice versa.
He may not be happy about this and may find a way to get out of the date himself from this point on.
This should make it really clear to him that you are not interested in future romantic dates with him and he may avoid trying to make them altogether.