ADVICE WANTED...PLEASE!

So, I've been taking a rest day between runs - due to the knee(IT Band?).
Problem is...now I'm off schedule with my running buddy & I can't figure out how to make the math work.
So, I need your HELP!
Prior to this week, when we each flew solo, we were running Mon-Wed-Fri together. OK, so I like to do my long run over the weekend. Problem is this - if I run Friday & then schedule LONG run for the next day (Sat.), I'm concerned about running out of steam & hurting the knee like I did 2 weeks ago.
So, last weekend was better, I ran long on Sunday - after a rest day on Sat. & took a rest on Mon. BUT, that put me off schedule for the weekdays...
My main question is this - PHYSICALLY, does it make more sense to run either:
1.) Mon, Wed, Fri, LONG SAT?? - rest Sun - run Mon (repeat)
-OR-
2.) Mon, Wed, Fri, rest Sat - LONG SUN?? - run Mon (repeat)
-OR-
3.) NEITHER - need rest day in between runs
-OR-
4.) OTHER - add your own suggestion!
How many of you think it's better to take the rest day PRIOR to the long run versus AFTER the long run? (or neither, or any other suggestions you have are much appreciated!)
Thanks in advance for both your time & advice!
Laurel