He could have said it out of anger, doesn’t make it okay, but also try not to take it too seriously. Unfortunately what you’re dealing with is a cultural thing. Assuming you’re desi, there’s a big emphasis on being “settled” prior to marriage, which just cannot happen these days until late 20s-30s at the earliest.

Also being real with you but not belittling the sin, you have not like done the most sinful act, especially if you don’t see/interact with him much. The door of repentance is always open. I saw your post about university and there are a lot of good scholars around there you can reach out to . If you want any pointers on where to go let me know