Throughout the short story "The Room" Katherine seems to repress aspects of the fact that her husband had an affair with another woman and might have killed her as well. Throughout the story she seems to want to feel the way her husband Phair felt during his affair. The word "deceive" came up between her and her lover a few times as she was curious to see how it felt. Has Katherine attempted to repress aspects of the nine-years-ago, life changing event?
I answered yes to this question multiple times. The first time i noticed is in the beginning of the story when her lover asked her if she knew why she was having an affair. She nodded saying no but she really did know why she was having this affair. She could have gone into what happened nine years earlier although she kept her feelings in and simply said she didn't know why.  
The second time was when she mentioned to her lover that she was curious about how it would feel to have an affair and he asked if she would be curious again. She hesitated and disturbed by the thought of her rough marriage and of this affair she replied "if you would like me to be" holding back all the emotion and feelings she had inside built up.
 When her lover mentioned his marriage was breaking then asked about hers she hesitated and said "no, not breaking up." In her mind she thought of it and breaking up had not even come up after the event of her husband cheating, although both of them pretty much knew their relationship was broken. Katherine din not go into any detail but she was affirmed that her marriage was broken after being asked about it.
 I believe the time she had to repress emotions is when she found out that her husband was actually in question for the murder of his mistress. She instead of give up her husband and turn her back, protected him when the police asked when he had returned the night in question. She told the policemen he had returned 90 minutes earlier than he actually did.