Originally posted by Tuatau:
For a short respite, perhaps you could contact your buddies and hang out together somewhere to unwind. You could also encourage your girlfriend to do the same. Sometimes a little absence might make you appreciate her more.
However, if you are thinking of something of a longer term, like a "cool-off" period in which you could test the waters by dating other girls, then it is advisable to discuss with your girlfriend first. Bear in mind that she would also have the same right to date other guys as well.
Should negotiations fall apart, maybe it is time to re-evaluate your relationship. Do you want to carry on as per normal and let nature run its course, or do you make a clean break and not waste each other's time? Think carefully when you choose the latter, for you may never get a chance to go back again.
Para 2 is strongly not advised to consider.

Foundation of each individual and values in relationships should not be compromised.
Any breach of values will reap undesirable effects, hence form unfulfilment between two parties.
Dating girls/guys other then the supposed partner does not give any solutions or answers to the present issue.
Messy situations may appear, or worse, long term of hurt and unforgiveness and self infliction.
Too many assumptions here. Not advisable.
Para 3 is agreeable,
re-evaluation in a relationship is effective only when two persons involved engage in communication.
Win Win Situation.
Dear xAcc: You might be starting to realise that there is more to what you possess now.
This relationship may have reached it's reality check period; to find oneself and set pace in life(Yun on defination of life). The relationship with her have reached a wall which you're walking towards, you may thought.
From your first post in this thread, it seems like you've already lost half your heart to let her go. If that is already your decision, then you can stop your read.

Communicate first before making any decisions,
not get a decision ready and then communicate, this is unfair.
There are many reasons why she had been doing those things which you didn't like now...'your realisation of her flaws'
You might be able to see things from her perspective and savage this relationship.
Thereafter you can discuss on working things for the better or to take a break. Learn to handle a relationship carefully and thoughtfully.
All in all, remember, if you really wish to end a relationship. Leave with a good closure.
Cheers