I had a weird thought right now. What if someone uses a love spell on 4 different girls or guys (take your pick) to essentially make them love you and each other? 
I realized it can make Life easier in many ways, from chores getting done faster (I help too off course!) to even acquiring more money.
I can barely tolerate one person in the same house as me for more than a month, 4 would end…badly. Harem’s really aren’t worth it, and you cant make real love with magic in my opinion
Well that’s a point
Yes I suppose you’re right to an extent. That’s why many love spells have to be cast again after a while.