Who knows what happened between Matt and Susan but it probably wasn’t good given that they’re not still together. If you care about your sister and her feelings, you’ll cast your net in another direction. Look, there are just some things that violate life’s Big Book of Rules and this is one of them. In fact, it’s ugly and mean, which brings me to my next point…WHAT’S GOING ON IN YOUR RELATIONSHIP WITH YOUR SISTER? Is this your chance to have some crazy power over her? Because if you start dating her ex you will do just that. And speaking of motives and underlying issues, what is up with Matt? Keep your friendship intact by following these guidelines to dating your friend's sister.It’s not uncommon for guys to become attracted to sisters of their friends.Needless to say, I felt like I was walking on air when I left the bar. Listen, when you get married, make sure your sister is your maid of honor and recruit her to throw your first baby shower. In case you don’t know, that is SARCASM spelled out with a highlighter, in all caps with a red neon arrow pointing at it because apparently your common sense gauge is broken. IT WILL CRUSH YOUR SISTER: Yes, Matt and Susan are no longer seeing one another but at one time, they had a deep connection and were planning on sharing their lives together.
You parading him around like you got the best toy from the Cracker Jack box is not going to be conducive to her healing.Ending your relationship with her could potentially end your relationship with your friend.Don’t neglect him: Be careful not to give the impression that you’re no longer interested in your friend, or don’t have time for him, once you start dating his sister.It is a no-win situation for you, should you voice any opinion at all.2. Don’t share stories about his sister with him, and don’t share stories about things your friend has done with his sister. Don’t double date: There may be some brothers and sisters who would be comfortable on a double date, but most would not be.You don’t want your friend watching your every move with his sister, and she probably doesn’t either.4.Remember the relationship: This fits along with the previous tip.