Is it bad to talk to multiple girls on dating apps?

Theres no rulebook that says what you can and cannot do, and thats why you make up your own rules. Thats why talking to multiple partners while youre single is okay. Not everyone is going to understand this concept of having multiple partners while youre single; some people may even disagree with it.

Is it cheating to date two people at once?

The dating phase shouldnt last very long. If you are dating two people at once and you are behaving respectfully and morally with each of them, you arent cheating on anyone.

How do you respectfully date multiple people?

Dont make them feel weird by telling them details of other dates youve been on. Honesty is important, but oversharing is unnecessary. Merely explaining that you are still going on dates with other people, but nothing else is serious, is the respectful way to date multiple people.