Works of literature and Lesbianism Correlation

I realized throughout reading Fun Home by Alison Bechdel there are a lot of relations to different topics. One that struck me as surprising was that of a fear of lesbianism.
I feel at certain points in the book, the main character portrayed by Bechdel discusses her path of being a lesbian. She relates literature herself and her father have read to characters, situations, and feelings that fictional and non fictional people have felt. For example, on page 214, there is a detailed photograph of Bechdel performing oral sex on her girlfriend, Joan, at the time in college. The quote that Bechdel uses says, "Like Odysseus on the island of the cyclops, I found myself facing a "being of colossal strength and ferocity, to whom the law of man and God meant nothing." " Here, she is discussing her facing an intimate factor of a relationship, something by her gender can convey her true sexual orientation and something new and scary.
The next image shows her about to conduct oral on Joan, and the quote Bechdel gives says, "In true heroic fashion, I moved toward the thing I feared, yet while Odysseus schemed desperately to escape Polyphemus's cave, I found that I was quite content to stay here forever." It is in this sense that Bechdel becomes comfortable with who she is and what she is doing.
I often wondered, how does this tie in with her father? From pages 220-221, Bechdel and her father are in the car and have a realization. They both state who they really are, their deepest secrets, dreams, and wishes to be someone else, fulling owning their sexual orientations. Bechdel writes, "It was not the sobbing, joyous reunion of Odysseus and Telemachus, it was more like fatherless Stephen and sonless Bloom having their equivocal late-night Cocoa at 7 Eccles Street." It shows their own union, a bond other members of the family did not have, and how the two very real people come together and see eye to eye on acceptance and embracing who they are, something done through the use of Bechdel's father's beloved literature.