I'm very irritated with my boyfriend, I asked him many times to go to the store with me and he declined but he just went with his friend instead.
Why do you think that he went with his friend instead of you?
I just don't think that he loves me enough.
You're fully right to feel irritated by this, because you shouldn't put your friends over your partner and that's exactly what he did. Life just isn't worth getting upset over such petty things, though, and you should try putting this behind you and not thinking too deeply about it or else it could ruin your relationship.
You're  right, I'm going to talk to him and if he doesn't budge, it is over with us.
If you're not happy in the relationship then it is the right thing to do. They don't love or respect you, so it is time to move on. The sooner you break it up the sooner you can recover.