Bad Relationship Pattern

Am noticing a very bad pattern in my love life she said, share the story below of a lady's relationship pattern and as for her, she says its bad.
Pls note that these stories are experiences of different people and if it looks anything like yours, its purely coincidental plus genders can be changed for privacy sake. And if you want to share yours, send a mail to talkwithjane01@gmail.com
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I didn't take this pattern of a thing as anything till i took out time to think of my past relationships and found that the same thing was repeating itself. My other boyfriend slept with a very close friend of mine, the other one did the same thing too, like 3 of my exes went out with my friends while we were still dating. And i tell you, it kind of bothers me 'cos my friends are not better than me to the point that the guys who profess so much love for me cheat on me with them. Funny thing is that later on, these guys still tell me about it. Now am confused, should i change my friends which would be quite difficult to do as i have known them all my life or should i stop introducing my love interest to my friends.
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For me, I think you've already answered the question, change your friends. And for the record, those girls aren't your friends 'cos a friend wouldn't do such. It doesn't matter how long you've known a person, if you find out that they're causing you so much pain, i know its not easy, but for your own good, keep them at arms length. Finally, be careful who you talk to about your relationship, its better to be careful than sorry' know your circle and keep it small.