Asking her out, but wanting her to say no?!

The girl I've been crushing on has left were I work and so I don't see her much...

We message each other and snap but conversation isn't the best, she flirted with me whilst messaging and I've done the same. I don't think she understand how much I like her, I went down the route of not asking her out and trying to forget about her. Lasted like a week without messaging her, and she messaged me first!

I feel like I need to ask her out but get her to say no... The reason for this is I need to know that nothing is going to happen so I can get over her easier. Our conversations when we message each other last like 10 messages, so not long at all! So for this reason I feel like she has no interest!!

I don't know, would it be best to ask her "Would you go out with me?" or "Is there any chance you're interested in me?" or I can ask her if she wants to do a run with me, we both do this run on a Saturday morning, I go by myself and she goes with her dad???