Crisis

I am 21 and engaged to a man I’ve been with for 4 years now. I’m starting to finally feel like I rushed into this. I graduated high school and moved in with him right away to run away from my family problems. But I also feel like this is a relationship I’m going to be in for the rest of my life thanks to my decisions. What do I do? I love him but I’m starting to feel like I’m not in love anymore.