<human>: Summarize the given text in a few sentences.

Live in relationship and together for 4.5 years. I honestly am ready to get married and start a family. I've got my career on track and want to take the next step in my life. I don't know why entirely, but I can no longer see those things with my SO.

The thing is, our lives are so intertwined and I love her so much that i don't think I'm capable of leaving her. I'm stuck in this incredibly frustrating feedback loop in my own head.

Have any of you encountered this problem? I really need to figure this out one way or another and I have no idea how. 

Thanks for reading.
<bot>: Want to get married and have kids soonish but I'm not comfortable with doing this with my SO[26F] of 4.5 years. I love her too much to leave. What do?