I unknowingly started expecting my partner to be a reflection of myself, often asking "why can't you also" when pointing out things I do. But I realized that he brings his own strengths to the relationship, and expecting him to mirror me is not fair or healthy.
You know that saying, "All work and no play makes Jack a dull boy"? It's true for relationships too. If you're just going to run errands, discuss chores, and then zone out in front of the television for "fun," you're missing a whole level of connection.
Over time i realised that i was showing love in a way that i understood and wanted to receive. I thought "doing things" for her was the way, but she wanted "quality time" together. A small change there had a huge impact on our relationship
Understanding where my hurt or fear or neediness came from was the first step in helping me strengthen our relationship. Getting to know myself better really helped me feel happier in our relationship, including the hopefully passionate, exciting, challenging, and rewarding life-long relationship with myself and my partner.
We realised that division of household chores makes everyone better off. Over time we figured out what each one of us is good at, what we each love/hate doing, and then arranged accordingly.
I realised over time that not all conversations are meant to be discussed logically, some are purely emotional e.g my partner feeling jealous when i speak with a girl is an emotion and I shouldn't try to explain it logically. This change made things so much easier for me.