That's your opinion and it should be respected. But as long as you never tried your luck with a married woman before or any taken girl that goes through the same as Amelie (which is being completely ignored by her horrible husband, not being touched or shown any signs of love, in both physical and emotional way), I can tell you that this relation between her and the MC can be very real. I flirted with married women and taken girls before (I'm not saying that I was looking to destroy a relationship or anyting), but every person in the world seeks and wants attention. Amelie finds this attention with the MC and I believe that his feelings for her are genuine (sure he flirts with the others as well, this is the part of the Harem afterall). The MC gives Amelie what she has been craving all this time, she knows it's wrong but since she already has a connection with the MC, it makes things easier, the fact that the MC is more present and gives out more love, to make her feel alive again, can be very real. Like I said, I had my share of experiences with married women that have been neglected by their husbands and I'm not talking about a simple thing, but being neglected in terms of love. When you've already a bond with that person, it makes things easier. I don't believe Amelie would have done any of those things with a random stranger, first because she's all the time at home, living the housewife life and second she would not know where to start. So in my opinion, the relationship between the MC and her could never be interpreted as rape in any shape or form. She loves the MC from the get go, she craved physical touches and attention, the fact that she doesn't let go of the MC is a sign that she loves it and that she's afraid of losing him as well and being alone again.
