This is an interesting topic I think; how you respond to the failings of those you love. I do think people are more accepting of the flaws of people they love, to the point of making excuses for them - not in a "they did nothing wrong" kind of way (which would be what you call infautation), but in a "I know they screwed up, but they were trying their best/they had a hard life/they didn't know any better/etc (and therefore you should let them off the hook)" kind of way
Which I do think is a good thing, sans the "and therefore you should let them off the hook" part; I certainly prefer it to the "no excuses, burn them at the stake" reaction people have to strangers doing terrible things. But I definitely feel like there's a dark side to love here, which I'd like to see more people explore without slipping into out-and-out infautation 
If you put work into a relationship because you love someone, doesn't that mean love is something that binds you?nvm, for some reason I read 'blind' as 'bind' XD
But yeah, I don't think love blinds you so much as changes your vested interests (in this case, giving you a vested interest in maintaining a relationship with them and making sure they're okay). Due to confirmation bias, the facts that you naturally pay the most attention to are the ones that support your vested interests, whether they're driven by love, hate, or a simple craving for ice cream
