Hello everyone!

First post on here! I do apologise for how long it is!!
So, I’ve hit a little brick wall recently, my (now) ex and I broke up around 4 weeks ago after a year and a half together. We’re both 22, which I get is still young and so it’s not the be all and end all of life. But, I can’t help but wonder whether he’ll ever regret letting me go? Here’s the story:
We came from very different backgrounds, mine wealthier than his, not that I ever cared about that sort of thing but I know it mattered to him because he felt financially inferior. I never flaunted anything in front of him either because that’s just not the type of person I am. We grew up in completely different areas and so were accustomed to different things but we always saw our differences as a good thing as it made us both more open minded. Although people would always comment on how much of a better catch I was (mainly in the looks department) but I always saw him as somebody to be proud of.
I would say we were both happy for about a year and then the last six months were not so great, although I can only speak for myself here. I felt as if he wasn’t putting in much effort to see/speak to me, my birthday and our anniversary came and went and I got no gifts from him (not that material goods matter, but the thought that counts) and we were arguing because, I guess we didn’t know what else to do. Meanwhile, I was the one that kept initiating contact and communication between us, although thinking about it now, perhaps I should have just given him space.
He did apologise for his actions but then they would keep being repeated and I felt as if I came out looking clingy and dependent on him when really, I was just trying to initiate communication between us, which is key to a relationship!
Anyways, the last straw was about a month ago when we didn’t see each other or speak much because he was ill at home. I felt distanced and didn’t really understand why we weren’t really able to at least speak on the phone or FaceTime at least once in that week. So i suggested we facetime and then we did, and we got into an argument over the fact that I felt distanced and suddenly, he started verbally attacking me saying things like ‘sorry we don’t all have our own room to FaceTime’, basically bringing up my financial situation even though he knows how uncomfortable I am about it already.
Two days went by and we didn’t speak, I owed it to myself not to apologise as I felt I did nothing wrong and still feel that way today. Anyways, on the third day, I decided I had to break up with him as I could not handle being treated this way any longer. I sent him a text saying we need to meet up urgently (something I’ve never done before), so he probably knew I was going to end it. I received a text about 4 hours later (he was asleep) and he broke up with me via text.
He cited reasons such as our differences, the fact he can’t give me what I want right now, he wants to focus on his studies etc. I lost a whole lot of respect for him for the way he did it, I felt as if he really didn’t care and it hurt me because at least I had the respect and maturity to do it face to face.
Since I’m friends with his sister, I saw her about a week post break up and told her a little about how I felt, but I didn’t want to alienate her from her own brother so I kept some feelings and anger to myself. Coincidentally, the next day I received a long text from him apologising for how he did it and how he’s tried to maintain nothing but respect for me since (which his social media begs to differ). He also said the best thing right now is for him to basically forget me and that he will pay me back the money he owes me (yep, rookie mistake on my part!).
I didn’t and won’t respond to the text as I don’t believe I should and maintain the belief that silence is best in this situation. I know that I’m going to be absolutely fine in the long run, however, I do feel that I gave him everything, both emotionally and bailed him out of a lot of problems etc. I felt like my love for him had no limits and looking back on it, it seems like unrequited love. I wonder whether he’ll ever regret letting me go?