the matchmaking? This is in a LOT of romance manga, harem or not, and they tend to have it where the heroine is forcibly coerced. NTR has it where she would have been "stolen" or wooed over to this other guy (and in smut they even have sex in front of him, breaking him on a mental and spiritual level). She was never stolen and even asked for them for the matchmaking to stop. That's exactly what they're doing.