I need some solid advice and reassurance on this little situation im in. Recently, my ex girlfriend has been trying to get back into my life.
Here's some background: We were together for about a year and a half (maybe a little longer,im not too sure). She broke up with me once to take a "break". She has close friends in my social circle and they would try and tell me stuff she was doing while we would hang out. It added up to her doing hard drugs, sex for drugs (dont know for sure if thats true or not) and letting her ex of 5 weeks before me live in her house. The break lasted a few months and being an AFC back then, took her back when she came around with "Ohhh nooo I would never do that" and believing her.
We had a great relationship, we both enjoyed it. After about a year, she started to lie about all kinds of things and I ended up breaking up with her this time, as I dont associate with people who I cant trust. The last break up was tough for me and I still had strong feelings for her. It's been no contact for 3 years since last week. She's been asking mutual friends about me and stalking my Instagram with repeated follow requests.
I am an identical twin. My situation is that my younger brother has been in constant contact with her since our break up and has been meeting up with her to do stuff; all the while behind my back. I feel betrayed.
How should I approach this? Do you think me being a twin played into this by her trying to replace me or something?