How to answer ILR question about living together

[Orval1987]

I'm driving myself insane with this one question, so any help is appreciated.

It's the question asking when you first lived with your partner.

I arrived in the UK on a fiancee visa, stayed with my husband in his apartment for a month (was not on the lease), then moved into a new apartment with him with both names on the lease shortly before we got married, and then received my spouse visa extension a month after.

Which date should I use?

— Date I came over on my fiancee visa because that's when I technically moved in with him?
— Date of our first lease kicking in, because that's the first place I had equal status on an apartment?
— Date my spouse visa was issued, because only then would I legally be "living" in the UK?

I feel like it should be the third one because that lines up with the question of how long I've "lived" in the UK (i.e. the duration of my spouse visa/residency permit) but I'm not sure if cohabitation is measured differently from legal residency. I know I'm overthinking it.

[Casa]

I'm driving myself insane with this one question, so any help is appreciated.

It's the question asking when you first lived with your partner.

I arrived in the UK on a fiancee visa, stayed with my husband in his apartment for a month (was not on the lease), then moved into a new apartment with him with both names on the lease shortly before we got married, and then received my spouse visa extension a month after.

Which date should I use?

— Date I came over on my fiancee visa because that's when I technically moved in with him? This one
— Date of our first lease kicking in, because that's the first place I had equal status on an apartment?
— Date my spouse visa was issued, because only then would I legally be "living" in the UK?

I feel like it should be the third one because that lines up with the question of how long I've "lived" in the UK (i.e. the duration of my spouse visa/residency permit) but I'm not sure if cohabitation is measured differently from legal residency. I know I'm overthinking it.

You began legally 'living' in the UK when you entered the country on your fiance visa. The 'equal status' has nothing to do with the question.

[Orval1987]

Thanks very much.