Interfere
Definition 1 of 4
Pro Tip 1/3
Unwelcome Involvement
Using 'interfere' suggests negative feelings about someone's uninvited involvement. When you interfered in my discussion, it derailed the topic.
Pro Tip 2/3
Boundaries Respect
'Interfere' implies crossing personal boundaries without consent. Please don't interfere with my relationships.
Pro Tip 3/3
Negative Outcome
Often suggests that the action causes problems or conflicts. Her interfering only made the situation worse.