The Ominous Reason Phobos Has Lines on It

The video explores the mystery of the grooves on Mars' moon Phobos. Discovered in 1877, Phobos and its twin Deimos were first closely observed by NASA's Mariner 9 in 1971. Unlike Earth's moon, Phobos is small and irregularly shaped, with grooves that suggest past traumatic events. Initial theories linked these grooves to an impact event, but further investigation revealed they might be caused by bouncing boulders or tidal forces from Mars. The latter theory suggests Phobos is being pulled apart by Mars' gravity, and in 30 to 50 million years, it may be torn apart completely.

What hypothesis explains the crisscross patterns of grooves on Phobos?

What will happen to Phobos in the next 30 to 50 million years?