A trip to the hardware store should yield you a garden hose female fitting, and a 3/4" coupler.
PVC cement can not be used in this application. Maybe for the interface between the new fitting and the coupler. But the old fitting is not 3/4" inch stock. Therefor the epoxy is required to fill the 1/16" of an inch gap. Let it sit for a couple of hours and you should be good to go.
I would perform this repair to both intake and output fittings. If one has failed the other will soon follow (though mine is cracked, is has survived 8 months). The vertical misalignment was most likely caused by low tub pressure. Make sure that the tub is inflated correctly, and hopefully you can avoid this failure and repair.