Thriller/slight horror set in snowy house


I only remember snippets from this film but not really any major plot points which may not be helpful but I hope someone recognises something from this. Think it had horror elements but don\’t remember if was horror.

Main character is an Old lady, husband is dead but she still speaks to him,not really a ghost, just her mind. he helps her round the house. Find things in cupboards etc.

She\’s alone in house during heavy snow storm. Refused to leave with her children . One of early scenes she stubbornly walks to shop with difficulty.

She was a fantasy novelist. Flashbacks show her youth at uni with other young poets. A poet she fell for.

That\’s all I remember 🙂