Never! If they say yes and they are still dating the other person, that is called cheating. People aren't tests!
You need ton confront the person you were kissing (if you were in fact kissing them) & ask them if they are dating someone else; if they are, leave them alone. If they're not, tell them that someone (don't mention names) told you that they were dating someone & you just wanted to ask for reassurance.
Plead the 5th
She's obviously has a crush on you.
well what if? what are you trying to ask?
ask the girl
say i know your dating someone else. then breakup with him.
Most likely she is probably flirting with someone else. There is no way you can tell if she is or not. Don't ask her to meet you, she might be a stalker. NEVER ask someone to meet you online. Or have you already met her?
You should respect the bro code and find someone else. If not talk to your best friend and explain to them that you like [girl's name] and ask him if he is serious about his relationship with her, if he is find someone else. If he's not then ask him if you can date her.
these questions can only be asked if you are true to the relationship that you are in and if you are true to yourself and the person that you will be dating, please do not waste each others time by asking questions that are of no use to either of you.1. first you should know the person inside your partner, who she/he is that is getting to understand him/her. 2. you should be someone who is free to give an ear to hear the background of the person that you are dating rather than just assuming, because really backgrounds contribute a lot to your dating of someone. 3.you should ask you partner his/her likes and dislikes.
Don't do anything that would break them up, but it wouldn't hurt to tell them that you like him/her. Just keep in mind that they are dating someone, so don't expect them to ask you out or anything. You can always just be friends.
If you are dating then by definition you are his girlfriend.
Just say it! If you are embarrassed then you should not be dating them! You just have to be sincere in asking it.