If the male was outside the house, it was likely the male half of the tenants (the house itself is tenanted and her room is a converted garage).
When I have seen her, I have occasionally seen the male and female tenants out front while Suzie emerges from nearer the demountable and she has told me and stressed a few times that she is 'well single' so can be contacted any time but I have seen another older lady chatting with Suzie a few times nerer the stairs.