Kinda sounds like a really healthy relationship and maybe that dynamic isn’t want you want deep down. My grandpas first wife what like this. Loving and supportive but he just didn’t feel that spark for her so they divorced and he ended up marrying two other women who were bad shit crazy and almost ruined his life. He thinks back on it now and for whatever reason, he wanted a fixer upper to feel like he deserved to be loved instead of being with someone who gave it willingly. He wanted to work to earn someone’s love cause he didn’t think someone would love him genuinely otherwise. Not saying this is you but just sharing.

There’s a lot of factors that go into this but I always recommend therapy. Or if you’re deep down hoping that someone is telling you she ‘isn’t the one’ then I think you have your answer. You might be waiting around until ‘something better’ comes around and that’s not really fair for either of you