When you expressing an interest or feelings, you open up the opportunity to be rejected or even hanged which actually means is rejected as well.
Dating is a form of courtship consisting of social activities done by two persons with the aim of each assessing the others' suitability as a partner in an intimate relationship or as a spouse. While the term has several senses, it usually refers to the act of meeting and engaging in some mutually agreed upon social activity in public, together, as a couple.
Dating or going together by mature just happens because they both have an exclusive dating (each not out with someone else) and accompanied by gestures (behavior) dating in general like holding hands, embracing, kissing, etc.
No need to use a statement like or request permission to become beloved. How did you and your partner know that you guys like each other? Yes, if already used to go out and enjoy time together, it's apparently that you both like each other.
You may not often invites out people you don't like, right?
Dating or having a relationship doesn't need to be stated, just let it flows.