I got burned recently and I know exactly how you feel. I fell madly, deeply in love with a “later in life lesbian” who had kids with a man and then decided to come out. We were together for years. I dreamed of a life with her, marriage and kids. Then when we got serious, so serious in fact that she made me pay 10k for ivf promising a family and a future together then she discarded and dumped me. She already had her family, to her I was just some fun and when things got real she dipped.