This is a topic, that I think should be kept private but since you brought up the topic to the Coffee Room. If you have a Rav, you are close to, then they are the one to express your concerns. It is a sticky situation, but I am sure the Rabbis have heard tons of other situations that could make your seem mild by comparison.
Also, remember, That Hashem gave you the life your in. We do not get to pick our canvas of life out. Trust me, if we had a choice how our lives should go, then we would all be happily married till our old age, healthy children and living comfortably and everything would be just rosy. Remember, that Hashem is in charge and Hashem is the one that you should turn to. Broken hearted and all. Also, find someone who is having a hard time getting married, and pray for them, and I mean constantly. When Hashem sees you are praying for someone else, Hashem will answer you!! Remember Hashem is the one who put you in situation for whatever reason. We won’t know till after 120 to be sure.
There is hope. In the new book A Handful of Stars, there is a story of a girl with various health issues, and somehow got married, even with all the naysayers saying it was not a responsible thing to do.
I am just trying to encourage you and B’H, may you find the person Hashem intended for you and may you do so with Clarity and much Hatzlachah. Remember to have Bitachon. Buy that kallah present now, because you truly trust that Hashem will help find your kallah.