Can a man just stop loving you?

Can someone you’ve been with for 2 years stop loving you? Or does it mean he never loved you in the first place and was acting the whole time.

I have this feeling so deep in my ribs telling me he doesn’t love me. And it hurts so bad every time I think about but I can’t just ignore it anymore. Has anyone else been thru this where you come to terms with the fact that you have been lied to and used by someone, when all you ever had was good intentions towards them? 🥺