Vacuum doesn’t suck either, the higher pressure pushes in to it.

You fall into gravity wells, they don’t suck you.

Best way to understand is to get the mental image of spacetime as a 3d sheet like grid, where each object pushes down on it and creates a pit, or well. The bigger the object the deeper the well, and the more force you will need to stop yourself from sliding towards the object and propelling yourself back up the slope.