Dating, particularly in your mid-30’s and after, is difficult because you’ve gained so much independence that compromising becomes so much more complicated. People own homes, furniture, have savings, stocks, and so on that commingling isn’t as easy as it is in your 20’s. Even mixing your friends isn’t such an easy feat! After 30(ish), you have likely become possessive over things because you have worked hard for them, whether that be materialistic things or matters of the heart — such as good, loyal friends. You have a feeling of pride over those things or people, and don’t want to just hand them over to someone or risk losing them.
When you enter a serious relationship, however, you need to transition from yours and mine, to ours, while still keeping a sense of identity. You DID work hard to become the person you are today, inclusive of the people, places, and things you accumulated along the way. But, just because you are sharing those things doesn’t make those accomplishments any less fulfilling, important, or a part of you. It’s just that now your life is even richer because you are sharing it — and your heart — with someone you love, and that’s the most important thing you will ever share.