Good point made Ugly.... but when it's something obvious, a person shouldn't be told... and why apologise when you don't know what you did wrong? Why not ask what's wrong, rather than apologise? It's lack of communication, I say...
I'm not directing this at you, as i don't really know you to do so. But one reason i think men might do that is because men want to get to the point. Women have a tendency to want to talk more about things. Which drives most men nuts. So they hope if they just apologize it will end there, and not risk having it turn into a 10 minute session on feelings, explanations, details, etc..
Two guys, one wrongs the other, it goes like this.
Steve- Dude, that really sucked how you did that to me.
Joe- My bad man, sorry.
Steve- It's cool.
now the situation is resolved.
Now here's more like how it tends to be with a woman.
Blue- I can't believe you did that!
Steve- Did what?
Blue- You know what i mean!
Steve- Oh... that.. yeah.. sorry.
Blue- What are you sorry for Exactly? What about it do you realize was wrong and why?
Steve- *mind races as he tries to figure out how to get out of this
Blue- *arms folded, angry look on her face... Well???
Steve- I uhh...
Blue- Fine, i guess i'll have to tell you what you did wrong. *Blue now launches into a lengthy explanation going over every detail from before the offense occurred, what lead up to it, what happened after. frequently sidetracked onto other subjects.
Steve-*after this lengthy, highly detailed, mostly confusing and all over the place inspection of what occurred a few weeks ago Steve is more lost than he was before. So he tries to pick out the parts where you seemed most hostile, and apologizes for that. whew.. he got lucky and picked the right one.
Blue-See, that wasn't so hard. I don't see how you could've missed that. I really wish you were more in tune with what i was thinking and feeling. It really bothers me when i when you are too lazy, or don't seem to care enough to even figure out why i'm hurt. I mean is it really that.........................................zzzzzzzzzzzzzz
*one month later Blue brings it up again out of thin air to rehash it
Ok, so there was some exaggeration there, but the point is still made. This is why men will sometimes apologize and not know why.
And, before the lynching starts, let me be clear this is not a criticism against women. Men and women communicate differently. I used this example just to make a point. Men start at A and try to get to Z in the shortest path possible. Women go A.. D.. F.. W.. C....... bouncing around and making sure they hit every detail along the way, and that's how they're wired, so it's fine. So please no one take this as an attack.
And yes, it's not all women, just like not all men are like that. But it is definitely more common for each gender to fit into those roles.