Is there a way to trick the find my friends app on iPhone?

My boyfriend and I have each other on the find my friends app, which allows us to see each other's locations. I work until midnight which is why he has access to my location but I have a surprise for him that will require me to go to the store and pick it up… I don't want him to peek at the app and have him see where I'm cause it will be obvious what I'm doing.

Any way to make it look like I'm somewhere else? Maybe make it look like I'm a at my house?

How do I get my texts back?

I went into my messages on my iPhone and none of them are there. I've not deleted any messages at all and I really want them back. The storage is still being used for all of my text messages so they haven't gone, they re just not showing up. I've restarted my phone a couple of times.