Male orgasm during sex / masturbation issue with female partner- relationship /u/More_Detail_7160 Sex

i (M20) and my girlfriend (F19) just had a long talk about our sexual relationship. We thought that she was asexual because she went through a period (2-3 months) of disliking sex and having no interest in it. But now she is back into masturbating and the idea of sex. She also told me about two weeks ago she has sexual feelings for her guy friend and this is one of the reasons she’s getting back into it. ANOTHER REASON she wasn’t into sex is because I was taking way too long to orgasm, I was getting hard but any position switch or taking too long I’d lose some hardness, and when she would give me a handjob or blowjob, the feeling of cumming would become way too sensitive and feel much different so I’d always tell her to stop (this made her feel self conciliatory) I assured her it wasn’t her and that the feeling was just too much to handle.I am comfortable with her sexual attractiveness to her friend, and think it’ll help us, but she thinks I’m not sexually attracted to her because I can’t/have to make myself cum when with her. I KNOW I’m sexually attracted to her, and I BELIEVE it’s because I masturbate way too much and possibly think I could have erectile dysfunction (she does too). Any thoughts or advice you could give.

i (M20) and my girlfriend (F19) just had a long talk about our sexual relationship. We thought that she was asexual because she went through a period (2-3 months) of disliking sex and having no interest in it. But now she is back into masturbating and the idea of sex. She also told me about two weeks ago she has sexual feelings for her guy friend and this is one of the reasons she’s getting back into it. ANOTHER REASON she wasn’t into sex is because I was taking way too long to orgasm, I was getting hard but any position switch or taking too long I’d lose some hardness, and when she would give me a handjob or blowjob, the feeling of cumming would become way too sensitive and feel much different so I’d always tell her to stop (this made her feel self conciliatory) I assured her it wasn’t her and that the feeling was just too much to handle.I am comfortable with her sexual attractiveness to her friend, and think it’ll help us, but she thinks I’m not sexually attracted to her because I can’t/have to make myself cum when with her. I KNOW I’m sexually attracted to her, and I BELIEVE it’s because I masturbate way too much and possibly think I could have erectile dysfunction (she does too). Any thoughts or advice you could give.