If Female hotness = 0, it takes 1 nanosecond until Male Boredom: Neural disgust registers before conscious awareness.

If Female hotness = 1, 1 millisecond to Male Boredom: the Time to retinal burn.

For hotness = 2, 1 minute to Boredom.

For hotness = 3, 3-6 minutes of trying to find a redeeming quality before

For hotness = 4, 30-120 minutes: looking for a same-night lay.

For Female Hotness = 5, 3-5 weeks until Male Boredom: charmed, then annoyed, pillow talk excruciating, then intolerable after third bang.

For Hotness = 6, 2-3 months until Boredom: she's the best he's ever had, but he's either put off by her beer pong hobby – low IQ – or emasculated by her sharp tongue – high IQ.

For Hotness = 7, 9-18 months until Boredom: a beta's heaven, but either the 'tard kills boners or relationship inherently unstable if she's clever.

For Hotness = 8, 5 years until Boredom: she's too hot for him to care about her being dumb or nerdy, but even a beta will eventually get tired.

For Hotness = 9, he doesn't notice anything else about her but they stay together 30 years until the beta suffers a seizure from the constant stream of sex endorphins.

For Hotness = 10, basically forever but this would never happen.

As you can see, it is almost guaranteed that men of every status rank will grow bored with their girlfriends, dates, wives, fuck-buddies without an external injection of groinal stimulation. There is only one way a man can delay Time To Boredom:

Girl 1, Girl 2 ...