Masturbation is a solo activity. Whether something feels like a breach of trust in a relationship depends on the specific behaviour and the agreements involved. Masturbating, using porn and sexual contact with another person are different questions and are worth discussing separately.
Be clear about what concerns you
If a disagreement comes up, ask what it is actually about. Is someone worried about privacy, shared time, pornography, a particular form of online interaction or an agreement that was not clear? Avoid treating every concern as the same issue.
You might say: 'For me, masturbation is private solo time. I'd like to understand which part is bothering you.' Or: 'I thought we had agreed not to use that kind of content. Can we talk about what we each understood?'
Discuss agreements without monitoring each other
Each person has bodily autonomy. Conversations about a relationship should allow both people to speak honestly without threats, surveillance or pressure to surrender privacy.
An agreement should be something both people freely accept and understand. If your expectations differ, say so clearly. You may need to revisit them rather than assume that one definition of cheating settles the whole conversation.
Solo pleasure and sex together
Someone can enjoy masturbation and partnered sex. Solo habits alone do not establish how attracted a person is to their partner, or explain every difference in desire.
If you miss sexual contact together, discuss that directly: what you miss, what your partner wants and whether anything has changed. Avoid making masturbation responsible for a problem without understanding the situation.
If conversations repeatedly become hostile or controlling, consider confidential support from a qualified relationship professional. You can seek advice individually as well as together.
