You say your seeking responsibility yet the one thing that stands out is your unwillingness to put work into your significant other!

Before taking the drastic step of ending the relationship, you could step up and take the responsibility of putting some effort in, you'll often be amazed by what you get back. Also to add, that's freely given effort, no strings attached, you just do it because you're grateful that you have someone in your life!

If you don't feel like you get much out of communication with your partner and you admit that you lack social skills, then it may well be that you need to work on your communication. It could well be that you make the same mistake many of us do and talk at your partner rather than engaging in conversation with them and listening too.

I'm not saying that this is a fix, and it's something that may take a prolonged period to really work out (years not months), but if you're unwilling to put this effort in then you're going to struggle in you're later life.