Oh I am fully aware that CM’s situation is not as shareefana as my friend’s. But that being said, going out for coffee or a dinner with a girl does not make a committed relationship - you can meet up with a person just to enjoy their company and get to know each other with no ulterior motive.
As we all know, you’re not going to marry everyone you meet or talk to. You go out to have fun and figure out if the other person is a potential mate, just a friend or person you want to avoid at all costs.
The issue in my mind comes when you mislead the other person into believing that coffee or dinner “means” more than it does - don’t create expectations in her mind. Be honest with the other person that getting together is “just dinner”, not a lifetime committment - then you can say no harm, no foul.
One more point - you don’t have to tell her about the other girls - just don’t tell her she’s the only girl or lie if she asks whether there’s anyone else.