5. He focuses on his own pleasure
There’s nothing wrong with focusing on your own pleasure in the bedroom, but if your activity resumes without him trying to create a mutual experience, no doubt you’re asking if he’s cheating on you. This could be a sign he’s not as sentimentally invested in the relationship as he once was.
A sudden shift toward himself and his feelings might suggest he’s starting to pull away. In case he’s cheating on you, he probably doesn’t feel like nurturing the relationship with you because he’s too busy doing so with the other person.
If you notice this thing when it comes to intimacy as well, it’s a clear sign you should be thinking about the bigger picture and maybe have an honest conversation regarding what you both want out of this relationship.