Girlfriend can't reach orgasm due to molestation as a child

Hello,

First time poster here. My girlfriend has an issue when it comes to sex that is very frustrating for her, and I as well. We've been dating for about 6 weeks, and she has only been able to reach orgasm after around an hour and a half to two hours of sex, sometimes longer, and only when she does it herself. She's told me multiple times that it has nothing to do with me, and instead her past. She explained to me that when she was around 6 or 7, she was molested by a 13 year old boy on multiple occasions. This caused her to begin masturbating at a very young age and before she understood sex, and it has caused traumatic experiences in her life ever since, as she never told her parents about the event until she was 16, assuming she would get in trouble. She says that now, she views sex and masturbation as something wrong, or something she'll get in trouble for, or something subconsciously violating. The flip side to this is she actually loves sex and has a higher sex drive than even I do. The problem comes with this. Although I understand it's not because of me, it is very frustrating for me to work very hard during sex for over one and a half hours consistently until she finally tells me to just cum, because she isn't going to be able to orgasm this time around. After I finally do, I'm very worn out and tired, but she still wants me to help her achieve orgasm by fingering her or going down on her. Normally this would be all fine, but it is every. single. night. I'm getting very worn out, as preferable sex between couples is around 15 to 30 minutes long. I am getting very tired of this and sex is becoming a chore for me. I know this may sound selfish because of her past and her needs, but it is just so often, it's starting to become too much for me! It's hard for me to enjoy sex. When I bring this up to her, she becomes very frustrated and even has started crying and becoming angry. I have no idea how to approach the situation. We have tried using vibrators during sex, lube, all that. Nothing helps her achieve orgasm. It is becoming a strain on the relationship, and she refuses to talk about it with me, because it brings back bad memories for her and also "makes it worse" because when we have sex, she will remember that I am having troubles with how long it takes her, which only takes her mind off sex and causes it to take even longer. I have no idea what to do, and this issue will most likely be the reason I may eventually break up with her. Sex is tiring and inconvenient, as it takes a ridiculous amount of time. Any ideas? I am open to anything.

Thank you for reading! I know it's a long bit of text.

You can satisfy yourself first without worrying about her. Then satisfy her by stimulating the clitoris with wet fingers or tongue. Clitoral orgasm is always faster than vaginal orgasm.