First things first, I'm not an adulterer, but I do have specific reasons for wanting to attract this woman. She happens to be my sister-in-law and has had a girlish crush on me for over three years and may still. I may be moving in my wife's family next summer (I'm 22 and in college). I don't whether or not living with someone who you could not morally develop a sexual relationship with can kill tense feelings, but my assumption is that it can unless if I do something to either maintain or solidify girlish feelings for me. Is there anyone particularly skillful with unique situations that can help me or give me advice? I know it's a weird situation but I will appreciate help.

If you need more details on the complications of the scenario, check the thread that I posted in the "miscelaneous" section of the forum.

Obviously I cannot be an aggressor at all in this scenario, which kind of sucks.

You mean to tell me that of all the girls out there, you want to fuck your sister in law? That's pretty disturbing man...

Trying to game a roommate is a bad enough idea on its own. Considering she is your sister in law makes it a fucking terrible idea. Nothing good comes from it. If you fail she will either tell that you hit on her or there will always be a weirdness between you two. Or you succeed and enter into a relationship destined to fail. Either way it goes your in a really tricky spot.

In the first sentence I mentioned that I don't want to cheat on my wife. I just want her to maintain a crush on me for a number of reasons. I also posted this because I can't hit on her, but I do want things to remain the way they've been. I don't think I would do poorly if I attempted to flirt with her, but even if I was successful I would feel horrible. I just need indirect ways to maintain things as they've been.

Again, I'm not attempting an affair; I don't even respond when she's flirted with me. I'm not going to cheat even if she throws herself at me. I have a specific goal

Whackness.

You're seeking validation of your desirability from your wife's sister simply because you aren't receiving this from your wife. Learn to communicate more effectively with her for starters.

That is a possibility; however, my wife has been intimate with me. I think one possibility is the fact that I was very creepy in high school then women suddenly found me attractive (far above average; I know women are generally easier in college). The first woman outside the woman I married that started flirting with me hard was her sister (and often times her mom in a joking way). I actually do get hit on by strangers often, considering how often I leave the house since working at home, which bumps my ego, but it doesn't satisfy me. I think one big culprit might be that I had a PTSD trigger a few months ago. Right before we went to to her mom's house to visit, I was already having severe paranoia about my wife dying in a car accident (I developed PTSD at a young age so it can be a little abstract). Whenever I have indication of her having the same feelings still, my anxieties start to slowly shift until there's some reason (any insignificant reason) to doubt. Although, I do think that if I do hear or read a good response from her within the next two weeks my anxiety should switch to the new university I'm attending and the new job I'll be starting.

But you may be partially right because my wife keeps switching between being irritable and loving.

THIS.

Recipe for one-itis if this is not already too late. Getting rejected by a woman you will have to see regurlarly for the rest of your life possibly would be 100000 times more embarassing than the most brutal of all club rejections. Plus, you can't display the necessary sociopathic qualities(if you have the looks to go with it obviously) to make a woman wet on someone of your family.

Read the OP. I'm not going to go after her and I would reject her she went after me. I'm simply maintaining an attraction without doing anything flirty. If I was a cheater, I probably would be able to maintain an attraction indefinately, but it would ruin my life eventually. I am NOT trying to do anything other than maintain attraction. Read OP's, not responses. I know why it sounds like I am trying to cheat, but trust me, I'm not.