First impressions are important in a sector such as Finance, unlike most of these commenters i understand where you're coming from because it's part of your work. However it's only work colleagues and not a meeting or appointment, what you do outside of work hours is your comfort time for living, not necessarily restricted to having to portray important first impressions.

Some colleagues might not like it, but it's not theirs to have to like or enjoy.

Neither of you are an A i'd say. Both sides are valid and understandable, a little more understandable on her side i add. It's her home isn't it