It would be wrong if you didn't tell your boyfriend. You always want to approve first with your boyfriend always make the man happy!!!!!!!! :-) L.G
Yes, you are being disloyal to your boyfriend and if he finds out he will dump you.
Who gives a cheese what other girls think of your boyfriend the other girls are just idiots if there's noting wrong with him but if there telling you stuff that can't be ignored then INVESTIGATE
No.
Yes.
Not at all.Sounds like you have a control freak on your hands.
Yes.
Absent any other twists... your sister's boyfriend is also your cousin, for example, so that your sister's boyfriend's cousin is your brother or something... it is completely fine to date your sister's boyfriend's cousin if you want to.
Then you don't have a boyfriend I don't see anything wrong with that.
No.
It depends on the circumstances.
is it wrong or right to tell your boyfriend or girlfriend about something wrong you did before you met?(before your relationship together) is it wrong or right to tell your boyfriend or girlfriend about something wrong you did before you met?(before your relationship together)
If you mean plain, vanilla "friends" with other girls, not "boyfriend", there is not a thing wrong with that - he is a normal human being. If you don't want him to be even "just friends" with any other girl, the problem is yours, not his.