I think it's a combination of two things: 1) seeing lots of credit cards as being extremely unusual and a sign of obsessive behavior, and 2) the ethical aspect of manufactured spend. I can understand the second to some extent, but the first part is strange. There's no issues with time commitment or credit pull, but I think my partner's someone with little exposure to the whole hobby. She carries the mentality that one credit card is enough for anyone, and that anyone with more is abnormal.

I think fundamentally we have different ideas on what is acceptable. To me, collecting miles on multiple credit cards and closing them a year later is totally legitimate. To her, it's gaming the system and a reflection of how I might approach other ethical questions in the future. I think despite my argument that collecting miles is separate from how I approach my life, she's insistent that they are intertwined and that it makes it difficult for her to trust me. I can't tell if this is something others have experienced, or if this is a situation that's unique to me, but either way I'm stumped as to the best way forward.