the thing is, even suicides have to perform this act somewhere.. they don't evaporate into thin air . . and by it's very nature, one has to take the implements of the act with them, or have them to hand...the human mind cannot strangle its own body with it's own bare hands.. the method of success requires some assisting artifacts, rope, chemicals, etc...
Women, in general, statistically, don't want to be found disfigured. Throwing herself off the cliff... hurling oneself over a high bridge , shooting herself, stabbing herself... these are, statistically, rare rare occurrences in suicidal women. Women, in general , in partnerships, ie marriage , tend to leave themselves arrayed and originally presentable, ( events overtake this a bit ) the idea being 'look what you made me do, now you'll be sorry'...
and it is a rare , rare, really rare suicide that doesn't want to be found. Or, to put it another way, makes any attempt to hide, does it right there where they live , finding a place outside known parameters is too hard, too exhausting, with the TV still on and even dinner in the oven .... it is an unusual suicide that leaves home, in the dark, stumbles around trying to find that place where they won't be found and then kills themselves....how?.. what did they bring with them?..... that's a lot of time to think things thru... to take the dog with them, or not?.. leave the dog??... the capacity to make decisions has gone..