I am very sorry if you feel judged or uncomfortable. I assure you I am not judging you -- as I have said, how you feel about this doesn't make you responsible -- nor is or was it my intent to make you feel uncomfortable.
However, it would be grossly negligent and irresponsible of us not to inform a user when crimes have been committed against them, as they have been based on your post. It would also be negligent and irresponsible for us not to inform a user when they are clearly unsafe, as anyone is in a relationship with a partner who facilitates and participates in sexual assaulting them. We simply have to do our jobs here as best we can, and that includes being clear and honest with users of our services about crimes and safety issues that pertain to them, and giving that information with care, as was done here.
If being informed of those facts has made you feel bad, I'm very sorry for that, however, I -- and Scarleteen as an organization -- are more concerned with long-term health and safety risks, and with someone knowing and understanding when they are the victim of a crime, so if informing someone about those things also makes them feel bad, we're afraid that's simply an unfortunate side effect we have to accept. The alternative to giving that information would be withholding it and leaving someone unknowingly unsafe or without knowing they have avenues to justice and safety. No responsible service or organization would withhold that kind of information from someone.
Per some of your questions, it is legally and ethically on everyone
involved and engaging in sex to seek the consent of everyone involved and to only do sexual things to or with that person with their express knowledge and consent. If your boyfriend lied to Mike and told him you consented, that is a further abuse and crime he has engaged in (your boyfriend would then also have committed fraud, on top of facilitating sexual assault: my understanding of the law when it comes to that kind of situation is that he could even be held responsible for engaging in sexual abuse of Mike). But none of that would not change that Mike engaged in assault, because he did not seek your consent from you. Your boyfriend can't consent on your behalf: only you can do that.
As I said, if you are already using an ongoing method, you may not need EC. If you are using the pill properly, then yes, EC won't be something you likely need.
Getting tested regularly for STIs doesn't mean a person does not have STI risks. That reduces
the risk to that person's partners
, but not to that person. If you engage in unprotected consensual sex with people, or people assault you without using condoms, your risks still remain as high as they would be without testing. You are perhaps confusing one person being regularly tested with closed couples or circles where everyone is regularly tested (and where anyone who gets a positive no longer engages in unprotected sex so long as their infection can be transmitted). That is a very different situation. I (and Sam, before me) am informing you of possible serious health risks because it is part of my job to do that: that is part of what we do as an organization. There is no such thing as sex with someone else that is free of STI risks: we do not propose any situation for "risk-free" sex (or sexual contact via assault) because there is, alas, no such thing.
As I made clear, I do not think you are a bad person, no matter how you feel about this. I also do not think that, if this occurred as you have posted, you bear responsibility for what was done to you here. I certainly understand, given how you are feeling, if this isn't a place you want to continue to talk about this or anything else. I do hope, however, you will take what was said about your safety to heart, and I also do hope you will talk to someone at some point.
In the event you want a resource to do that with that is not this resource, this resource, which includes a 24-hour crisis line, is likely local to you: https://www.sace.ca/services/support-line/
(780.423.4121). Here is a listing of further resources in Canada: http://gutsmagazine.ca/resources/
I very much hope that you can get and stay safe, that you can process this and make decisions about it that are in your best interest, that you can live a life free of sexual violence from here on out, and that you can feel good with yourself no matter what.