Just one month after Kristen Stewart and Robert Pattinson called it quits ... KStew bought a house within monitoring distance of her ex ... a very weird move indeed. Stewart paid over two million on a Los Feliz house that is just one mile away from her scorned ex. RPatz kicked KStew out in July after photos surfaced that showed pretty clearly... She was banging her married Snow White director Rupert Sanders.

Stewart's new home gave her easy access to R.P. -- it's a 5 minute car ride. If the break-up was real ... her plan may have worked, because KStew and RPatz have been seen TWICE together yesterday in Hollywood. As for her house, according to Real Estalker it's pretty sweet ... 4-bedrooms, 5-baths, pool, spa, fire pits, sun terrace -- the works.