I'm 23 years old, and I'll have been in the same relationship for 5 years this coming February. I had the same mental train of thought. "I'm young, and I still have so much to do. Why am I tying myself down?" In the end, it doesn't matter how old you are, but what you want out of life.
There is a difference between ignorant to your feelings, and purposely careless (meaning, he knows it hurts you, yet he doesn't care).
If he doesn't care, then I say move on!
If he just doesn't seem to deal well with feelings, then you need to make a decision. My DF isn't always great with my feelings, but I know he doesn't do it purposely. In knowing that, a lot of what is said tends to roll off my back.
I don't think there is any perfect love or anything like that, but I do believe this:
If you meet someone, and you want to change what they do or who they are, it's not the right person for you.
If you meet someone, and you love them despite what they do or who they are, then it's love.
Have you talked to him about any of this? What does he think about your feelings regarding his actions towards you?
I hope that makes sense. One of the biggest hurdles DF and I got over was accepting eachother for who they were, and not trying to change it.
If what he says or does hurts you, even though he may not mean it, it's doubtful that it will change. I mean, it might lessen, he might catch himself more often before he says something careless, but he will still slip up. If this is something you can't live with, then it's not fair to yourself or to him to hang on to something you know you can't live with in the long run.
"what if i dont find someone better" - Is one person better than another person? The question I think you need to ask yourself is, "What do I want, and what do I deserve?" Write it out so you don't get lost in your spiral of thoughts. And if you have to kick him to the curb, then do not feel guilty. Your reason does not have to be good enough for anyone but you. I believe it's better to be honest with someone, and let them go, then to lead them on, and let them go later on.
Like I said, that's if he's unknowingly careless with your feelings.
Anyone knowingly careless with your feelings is not worth you or your time. You far supersede that. Mental abuse can be one of the hardest abuses to get out from under. I agree with the ladies, go out, meet some people. Maybe join a support group. Having someone for support is like a support safety net. You will feel stronger and more confident in your resolve to make this decision.
Good luck
