<human>: Can you give me a shortened version of the text?

So, like twoish months ago my high school sweetheart boyfriend broke up with me at one of the worst times of my life. I was failing school, my mom was extremely ill in the hospital and slowly sinking into a deep depression. He left me at the worst possible time he could have left. It's been a really hard two months. I moved into a tiny studio in a shitty part of town because I couldn't make rent. 

Two weeks ago he calls me up and he's crying, he wants to get back together, he made a horrible mistake, the whole nine yards. Of course, I let him over and we hook up that night. It's just like old times, we hung out the whole next day, it's like we never broke up. it's been like that for 2 weeks but we haven't put a label back on it yet. I'm still severely hurt over what he did to me. 

He was in the shower today and his phone was going off like mad, I assumed it was a group chat, but I looked any way just to see who it was. He had two separate girls contacting him about how great the other night was blah blah blah, we should get drinks sometime,blah blah blah. That shit. Then he had other messages in his phone that seemed to be about me, and I was right. I've known his passcode for years and it was still the same and I couldn't help myself from reading the whole thing. In summary, he basically said it would be really easy to sleep with me a few more times because I was so sad and vulnerable right now 

I haven't brought this up with him. I'm too scared to. I love him still, I really do. He was my everything for so long, but this is such a red flag. I don't know what's gotten into him. Some general advice would be really helpful, thank you friends
<bot>: broke up 2 months ago, "back together" 2 weeks ago, told his friend i'd be easy to sleep with because I'm vulnerable