Looks like it's getting ready to split. The question is, reboot now or change out the halfshaft later.

And if the inner boot is that bad, the outer boot is probably much worse, since the outer joint does a lot more movement. You may be better off just buying a reman axle
Raxles is the best brand to get if they make one for your car. Otherwise, get a reman at your favorite parts store with the lifetime warranty