Really the odds are incredibly small. When hsv lesions are healing (scabs) they are not very contagious as the virus I'd still healing. Like I said, I highly doubt you contracted hsv or any std for that matter.
Hsv is mostly transmitted by opened sores. Im sure that if he didnt have any open sores you should be ok. Of course a test wont do any harm. He could have had sores inside the mouth but you would have had symptoms by now imo. Talk to a dr!
If it is a herpe how long does a herpe scar last? Is it possible that he could of had a herpe but it healed but still could've been contagious, wouldn't I had gotten infected by the mouth also? Why does the scar still itch sometimes, does that mean its not fully healed even after 7months? How do I get rid of the scar?
Oral sex can transmit hsv1 and gonnerhia. The chances of hsv1 if he had no cold sores present are close to zero. From your description it doesn't sound like hsv at all. More like trauma from the act itself. I wouldn't worry
Oral sex wont transmit STD so no worries...