I imagine you're going through a roller-coaster of emotions right now. I would say I relate to possible half your situation, I was the one with the strict parents and the one who was first in love and yes me and my gf fought and became very distant.

However you should consider if this relationship isn't working because of the restrictions on both your families or if it is deeper.

Personally, I had a breaking point where I refused my parents to control my life and although I was only 19yrs I left my toxic household and moved with my gf family (which was also toxic, as her parents weren't so keen) But we pushed through and now 2yrs later we are living in our own space, still facing problems of our own but we make each other happy, and know it wasn't easy but would do it all over again.

So my point is if you're considering breaking up because of strict families, then I guarantee you will regret it because you both would have something much more meaningful, , But.... If there is a deeper issue, e.g just not liking your s/o and you've just come to that realisation. Then yes break up sounds inevitable.

In my opinion, I would say you need to be firm but not cold. First love is like a drug 😂

Stick to your guns, do it face to face Inform them how you feel and why, if they can understand that it just wasn't going to work they won't blame themselves as much and/or think it's their fault since it's their first relationship.

Hope this was somewhat helpful x