My son 14 with Autism, has a gf 13 they have been together since November. Around March they broke up for about a day and my child that never cries (unless he is having a meltdown which is rare he usually shuts down) cried so hard over her. The break up lasted a day. His gf and my daughter are good friends and she told her she wanted to break up for another boy she likes. She then decided she wasnt but she has been giving my son the cold shoulder and is being disrespectful to him (ex. He shared a video with her and she told him she doesnt care and to leave her alone). He knows something is wrong but that they are still okay.I also need to add that my son is crazy over this girl and prior to this they would be on the phone for hours. I told his sister not to tell him but to let them work out their own stuff. Now Im second guessing that because Im worried that it will do more damage. He does have the tendency to get super depressed sometimes. The helicopter Mom in me wants to jump in and fix it. Should I let his sister tell him? Tell him myself? Or keep out of it?

UPDATE: His gf admitted to him she had feelings for the other boy but that she didn't want to break up. Then his sister told him everything before I could talk to him privately. At this time they are still "together" but not sure how long that will last. I had a talk with him and basically told him to tell her even though he may miss some social cues or read emotions doesnt mean that he is oblivious to when there is a problem. I also told him to tell her that in the future it is a boundary to be honest and just tell him if there are issues and not to ghost him or be disrespectful. I feel like we need to have more discussions about what is healthy in a relationship and what is not. Thank you guys for the advice.

Update 2: They completely broke up about 3 months ago I ended up making him block her because she was being really awful to him. Called him names and told other people in their friend group really negative things about him. He battled with some depression and sort of floundered a bit. He got back to his regular self about a month ago. 2 weeks ago we were playing pokemon at the park and he met the sweetest young lady from our neighborhood. He told his therapist that he likes her positive attitude and that she is so sweet.