OP, I can see a little of both sides. After going with you for 5 years, his girlfriend breaks up because she’s finally discovered she’s a lesbian. Obviously he felt betrayed and possibly used. Outing you to your family was wrong, but people do things when they feel hurt and possibly betrayed. And from your side, you finally come to this realization about your sexuality and break up with your long time boyfriend who betrays you by outing you to your conservative family. Of course it’s not entirely him but your unaccepting family who are actually causing you the most grief. One way to look at this is the cat is out of the bag now with your family and you no longer have to dread the revelation - because it’s here now. OP life is usually long, give your parents a while to process this revelation. They may come around to acceptance. In the meanwhile try to find support where you can.

So your ex is a d-bag. Besides that, did your family throw you out and disown you? Prefacing them with “religious and conservative” implies that was what you want readers to expect, but are you giving them a bad wrap? I bet they took it ok.

He's pissed off that he turned you gay. It's going to be difficult when he has to tell the next girl how he wasted the past 5 years.

What a dirtbag... i hate people that find fulfillment in being bitter and ruining lives to make theirs better. Idk if it's your thing, but know that according to Dante the 8th and worst circle of hell is reserved for betrayers...

I did the same with my bf of 4yr for the same reason and he outed me to my pastor father

You never tell them why, and now you know why... screw your family if they don't accept you...

Ok, so now your out. Now you can start working through this with them instead of hiding. He did you a favor really.

There is also another possibility : he outed you by mistake, either he didn’t know you hadn’t told everyone or he was so upset he didn’t watch his words. I did that once about a family member : everyone around me seemed to know, i grew up knowing and didn’t see a problem with it so during a dinner a few years ago I said something like « is my (female family’s member) girlfriend also alright with it? » (i would have asked the same for an hetero couple). Sadly i learned that she wasn’t « out » per se....... i felt soooooo bad about it. I phoned the person i dined with a few hours later, explaining my mistake and asking not to spread the information further. Seems like she said nothing so far. I don’t like this family member (because of her personality not because of her sexuality) but i still feel bad about that years later.