R/S advice

People always say to look at the little things now, before things like marriage come along, deciding if this is the person you wanna spend the rest of your life with. And then there’s persons who say no one will be perfect and some flaws you have to accept. Here I am stuck. I don’t know if I’m currently with someone who I can see me spending the rest of my life with based on traits that I don’t know if I want to have to deal with for the rest of my life. But then there’s the good and the long term investment. But I’m in love with someone who I feel is only in love with the fact that I am in love with them and not because they are in love with me 🤷🏽‍♀️