Lastly, when your partner and your friend are communicating matters too. If you do decide you need to have a conversation with your partner about their relationship with one specific friend, timing and approach are key. AdvertisementTone matters, too—making your partner feel attacked (even if you think they deserve it!) Your partner might feel offended that you don’t trust them, or embarrassed that they didn’t notice anything was off sooner. It’s easy to be jealous of some mysterious, multi-talented hottie who lived in your partner’s freshman dorm.