Thanks for sharing! I didn't realise that would be the case.
You're right, paying for a Love bracelet is no small feat, and I agree it is something to be taken care of. I decided to not be lazy and Google it, and found several jewellers who made blog posts about the damage (and, the rate of damage) that chlorine and other chemicals (in hot tubs, swimming pools, etc.) can do to jewellery.
An example I found (talking about jewellery, such as rings, which have jewels set with prongs):
5% chlorine bleach heated to 110 degree F - prong failure would occur after 21 hours of exposure. Only the platinum and palladium white gold settings held their stones in the worst test solutions. (Shallow Jewelers highly recommends using platinum prongs whenever possible)
5% chlorine bleach at room temperature - prong failure would occur after 120 hours of exposure.
5 ppm (parts per million) chlorine using hot tub chemicals - prong failure would occur after 312 hours or 156 days (based on 2 hours a day, 7 days a week).
5 ppm bromine using hot tubs chemicals - prong failure would occur after 384 hours or 192 days.
Household detergent - no visible effects on the setting.
(source for info:
http://www.shallowjewelers.com/faq.rhtml )
Something to consider! The Love bracelet, I imagine, is less of a problem (since it doesn't have prongs) but it isn't clear what damage there could be to the screw threads.