Well, this seems to me like an eminently reasonable discussion of an incredibly sensitive and upsetting topic. I understand why superficially someone would, without thinking, agree that 'stranger rape' is worse than 'date rape' because the very term 'date rape' trivialises the attack. The former summons up the stereotypical evil monster lurking in an alleyway to pounce on an unsuspecting innocent victim. 'Date rape' presupposes some kind of sexual attraction and, if you don't actually think about it, your logic may follow that it's better to have sex with someone you like than someone you don't.
But rape isn't actually about sex. It's about power and control, violence and domination. Sex is simply the weapon used to assert this. Take it out of the equation and say 'it's preferable to be punched in the face by a stranger than your boyfriend'. Is that true? No, it isn't.
People want to soften the concept of acquaintance rape by relegating it to a question of blurred lines, misunderstanding, a temporary lapse of control. Because we don't want to believe a normal man, someone we like and trust, is capable of a heinous crime. So we downgrade it - it's not a 'proper rape' committed by a 'real rapist'. But it is. And sadly, that 'real rapist' may be a man who seems nice, normal, friendly and unthreatening.
The attitude towards rape and the idea that it's more understandable or acceptable for a man to rape his friend/girlfriend/wife than to assault a stranger just clarifies how much we still need feminism and it bewilders me that some women won't identify themselves as feminists.
And looking further afield, the culture of rape endemic in India is resulting in numerous horror stories in the news. The two girls who were raped and hanged recently were known to their attackers. Was their fate somehow more palatable than the case of the young woman raped and murdered by strangers on a bus? It would be insulting and vile to weigh this up - the answer is that all rape is unacceptable, all rape is terrible and the concept that knowing the perpetrator makes it any less awful is nonsensical.