I have half a dozen strawberry plants I grew from runners last year. They have been sitting on the North side of my greenhouse in pots all winter and look fine, I shall be planting them out shortly and will take all the flowers off this year, you get a shed load more fruit next year. The aim is to have four rows, three fruiting and one new, then the next year lose the four year old plants, they will be getting past it.
Not quite there, but we should get a good few strawberries this summer.
I have a couple of strawberry planters with side pockets that I have been given over the years. I grow things in them, but not strawberries, they do like a fair bit of room. I would get your plant outside and leave it alone for a bit to see what happens, I have known strawberries lose almost all their leaves and come back from the center to make a decent plant once they acclimatise.