If someone is in a relationship, they present their partner as their boyfriend or girlfriend, while others who are not, present their partners as “someone they are dating”. There's a big difference between dating and being in a relationship. Generally speaking, dating describes a less serious level of commitment before either person is ready to describe the other as a girlfriend or boyfriend. This is not a firm rule because the terms don't have a strict definition.
You can only determine which term is appropriate by discussing it with the person you are seeing. Some may assume that dating and being in a relationship are the same thing. People can make this assumption by using each concept interchangeably, but each of them has differences that people may not notice. Sometimes it depends on how a person introduces their partner to people they know.
They can refer to them as their girlfriend or boyfriend or say it's someone they're dating. You might be seeing someone for a while, but I'm not sure if it's considered a relationship. You could be seeing someone, but you wonder when it turns into a relationship. Clarifying the aspects of each will help to understand the status between you and your partner.
Being in a relationship entitles you to call your partner, boyfriend or girlfriend. They can openly refer to each other as partners, which would convey the exclusive position they occupy in their life. All that said, exclusive dating doesn't mean that this person is your boyfriend or girlfriend. That role requires legitimate responsibilities and a change of priorities, that is, joining their link before other commitments.
If they introduce you as their girlfriend or boyfriend to their friends or family, then it's certainly official and congratulations, because the two of you are officially in a proper relationship. From college onwards, people are more likely to go on dates in hopes of meeting the person they would like to marry. If the person you've been seeing recognizes that you're dating but doesn't want to use words like girlfriend or boyfriend, she or he doesn't consider the relationship to be solid, yet. Words like girlfriend and boyfriend are used to describe a relationship in which two people consider each other a couple.
Seeing someone doesn't mean you're in a relationship with them or that they're your boyfriend or girlfriend. If the other person doesn't want to have a full relationship (or even an exclusive date, for that matter), you can decide to keep it casual or end it and move on. In the first, both of you have decided not to date anyone other than each other, whereas, in the latter, you have decided to take things seriously and move forward to staying together or being alone together. I myself constantly try to avoid any possible rejection scenarios, in fact, I ended up taking the initiative of my boyfriend when it came to defining the relationship.
It starts with the online texting stage, the first date and then deciding if one wants to continue with this or not. Quotes can be used to describe dating before committing to a relationship, as well as a descriptive verb that refers to being in such a relationship. Exclusively going on dates means that you and your partner have talked about your future and have agreed to go out just for the time being. The difference here is that you choose to date someone exclusively by investing more energy and time with them.