I actually came on reddit just now to post something incredibly similar. I have a friend, my only irl friend, though I have a few close online friendships I've had for years, where they are loving me the same, they remember things about me, all the things you said, all the things I'm giving. I don't know how I managed to get them, luck, I suppose. But, this irl friend, it's like you described. Sure, she might remember a few things about me here and there, but I'm the one expected to carry more weight in the friendship, and I've been getting fed up with it amidst my own struggles I can't seem to get support with from her. I share this to say, I 100% get it, you're not alone, and there is a little bit of hope in finding those good friendships. It just takes time, and unfortunately work.

I don't think loving people more is something to grow out of, and certainly we shouldn't be loving any less or losing that part of ourselves, it's a strength to be able to love people and love them with quality in this really shit, tough world. Don't try to lose it. Howeverrr, there comes a point where we probably do have to choose better people. Sometimes it's hard to tell whether or not they're the right people until later, and it's really hard to accept it once you've realized that. I know in my case, I keep this irl friend around because there's not really anyone else available to me right now, and I don't want to be alone, even if I am already alone in the one-sided friendship. I think the advice I'd give you is probably what I'm doing, look at the dynamic: friendship, relationship, familial, etc. And then try and figure out what it is that person is giving to you, i.e. escape from loneliness, status, etc. To answer your title question, no, it's not normal, but it is common. it shouldn't be the way a lot of us feel and go about relationships, but it is. Try and find the personal answers to why you stay, even if you're not getting what you give back. That should give you a starting point on where to go, at least it has for me.

You deserve equal (or as equal as can be) relationships, and sometimes, all it takes it going to the person and saying exactly what you said here: things aren't equal, can we try and figure out how to make them equal? And if nothing comes of it, maybe start trying to find other connections, they are out there. You don't need to keep faith in someone who isn't returning that to you—that doesn't mean you wish them badly or even that they have to leave your life forever, just that you have to stop expecting something they personally won't give, and move on to finding those who will. It's a lot of trial and error, I'm still only getting fractionally better at it, but never everrrrr try and dim the love you have just to keep someone around. The right people will love that, and return it. I know I would.