I have been with my partner for three years now. (I'm early 30's, she's late 30's). We get along really well. Admittedly, our relationship didn't start during the choicest time for either of us. I was heading into (what I later found out to be) an illness to be followed by a mental breakdown and serious depression. My partner was coming out of years of serious depression and hospitalization, feeling better than she had ever felt and was beginning a new chapter of her life with graduate school. But I have done everything I can to support her, including moving along with her to her school city and she has always been there for me during my breakdown period of illness and depression. We are truly friends as well as life partners. But an issue came up today that is very hard for me. When we first started dating the issue of having kids came up and I expressed my feelings that I don't ever really see having children (for many of my own reasons that I won't ramble on about here). At the time my partner mirrored my statement that she didn't see kids in her future either.
But over time... and with some additional therapy she has realized that she actually really does want kids and her want has grown steadily over the past year. We took this to couples therapy today and after the hour plus it really came down to our T saying to my partner "you are going to have to be the one to weigh this out and decide which is more important to you."

I have had a heavy heart since that appointment this morning. We actually still went out for lunch and ran some errands etc. and I was fine. But it really hit me tonight. I just hate feeling "in limbo." I said to her that I am going to have to put a time limit on her decision making period. Tonight I put it at a year -- and told her that she is going to have to decide within the next year what her move is going to be. But this is an awful feeling. I am just now (I mean within the last 2 weeks!) beginning to get my life back together. This whole issue now makes me feel like I just can't do enough. I just can't offer enough, I just can't do anything right. After a very intense three years, I now have begun to imagine us together for a lifetime. I really like her, love the way we interact and get along and I feel heart broken that I can't offer her any more... that she might decide to leave because of it. I am not good at hiding my feelings (if I'm hurt) so in the short term I am having a hard time just letting this go. Can I really even make it a year to discover her answer?
Sigh.