I have been in a similar situation. I was in a commited 3 year relationship and we met at Uni. Last January he got a Job which meant he had to move away. At the time i was very upset as we spent all our time together and I was sure we would be getting engaged. However, time apart made me realise I wasn't in love with him and that I didnt want to marry him.
He would get snappy and grumpy with me and he always seemed to be making small comments about me which, at first I thought was him showing he cared but now I realise was just unnessessary. I would say that moving away will be scarey and daunting at first but will make you so much stronger and independent. There is also another plus for moving away, as it will make you realise whether you actually want to be with him. I believe that long distance relationships can work, but only with the right person.
If the someone else/someone better idea is in your mind at all, doesn't that tell you something that maybe you are not enitrely happy?If you think there is someone better out there for you, then there maybe someone better out there for him too, so it seems to me it would make sense to break up while you're at uni, you can look around, so can he, if you find that someone better, good, if not maybe you can try again with your current boyfriend at a later stage.
You are not fully committed to your boyfriend/relationship if you think you can do better and suspect that you may easily meet other guys that you will be attracted to. You are not being true to yourself or you bf, your heart is clearly not in it. Thinking about getting engaged with the doubts that you have coupled with the fact that you are starting uni & may be in a ldr is incredibly naive. But of course, you know all of this. Being a divorcee in your twenties is not a good look!
That's the point though! I don't want to get engaged yet because for me engagement is as valuable and important as marraige. I know plenty of young people who get engaged just because they get bored of being boyfriend and girlfriend and they always end up breaking up. When I get engaged I want the ring, the party, the wedding planning and to be at least living with my partner!
He seems to want to get engaged so that he will have more of a hold over me at uni. Which isn't right! He says he feels hurt and let down by what I said but at least I was honest!
I think this has to end. It doesn't feel right anymore. I don't think I'm happy. But how do I end it? I want it to be mature and to just say that I had a great 4 years but that this isn't working anymore. But I know it will be a huge row and I'll cry and look pathetic. I'm not going to do anything until I know about uni but it's going to be on my mind.
I was in this position, (he quit uni to move to Plymouth to be near me) but broke up with him. It was awful, but I'm in a much better place now, I feel like I've got more experience and grown up a lot now I've been there and come back. If you have any niggling doubts, don't do it - cold feet is what you get right before the wedding and weeks before this you feel 100%.