Do you ever feel like your BP spouse resents you because you don’t value his/her kids like they do?

I ask this because we are getting close to the empty nest phase of our family after 12 years together and I feel some underlying resentment from my wife that I might be looking foreword to my 18 and 20 year old stepkids (though I’ve never said this to her) moving out while she is dreading it every day. I’m very supportive to her and trying to help her through the process of finding a college for her 18yo boy (her Ex is also involved in that) and I think pretty patient with how highly engaged she is with both kids right now. They take all of her emotional attention and I’ve sort of moved into the background while we work through this. It’s generally not a big issue, but I feel like her fuse is much shorter and she more quickly prone to anger directed at me, especially when she gets a few drinks in her on a (rare) date night. I feel like this is resentment towards me because I’m not as broken up about the kids moving out at some point. I get along very well with both of them and enjoy being with them, but I confess I look forward to us focusing more on each other as a couple and I feel like she doesn’t really care very much about that. Just wondering if others have felt the same way at this stage of their relationship.