While most hellebores will retain their foliage through winter, those that produce flowers on separate stems (the term is 'acaulescent') typically have last season's foliage removed at this time, often earlier. There's a number of good reasons for this: the foliage usually looks pretty tattered and ratty by this time, it often will overwinter disease issues and as you have experienced, it is usually flattened by rains, snow or other weather. It seldom will return to an erect position - what you remember is probably the new growth that replaced it. And the flowers show off better if the old foliage is removed :-) Cut 'em off - this season's fresh new foliage should be emerging and will rapidly take old stuff's place.

btw, most hellebore growers remove this old foliage in late winter just as the flower buds are emerging from the soil. This offers the best disease prevention.

Are you referring to Lenten Rose/Hybrid/orientalis Hellebores and not the Corsican or other species of Hellebores that bloom on stems with the leaves?

If so, get in there now while you can and cut off all of last years leaves.
This will help get rid of possibly diseased leaves and it will make the blossoms show up nicely.
There will be new leaves coming up soon if not already.

By cutting back now,( or even sooner) you avoid damaging the new emerging leaves.

You can also cut back the flowering stems later after all the color is gone and help rid lots of seed falling and sprouting within the original plant if you don't want seedlings.

You might also want to look inside some of the flowers for slug damage - they get up inside them and eat the anthers out - and take corrective measures.

If you control slugs you may also get numbers of your own seedlings living on to produce some interesting additional shades.