The guy I likes best friend asked me out and told me not to tell people! Help?!?

I'm just gonna give you all the facts in a list okay -I like David, have liked him for about 4 months - this week my friend ( with out permission) told David I like him - David told my other friend he would date me next year because right now we go to different schools and are very busy -David does have a phone but used his best friend Taylor's phone to text me today because us 3 were going to hang out - I only meet Taylor last night - Taylor texted me asking me out but saying not to tell anybody - I told him I have to much **** in my life and am over stressed (which is true) and I would think about his offer ( not exactly true) So yeah basically I just don't know what to do and need to rant and want to know what you think about this or what I should do Oh and David, Taylor, our friend Maddie and I are all hanging out tomorrow to explore and old sewer tunnel ( yes it's safe I go there all the time)