How about I stop inviting my boyfriend to events?
Is there a reason why you don't want to invite him?
He's such a loser and I don't pay attention to losers.
You shouldn't be rude and not invite your boyfriend. Most couples tend to go to events together as a group. If you don't like to spend time around them anymore then maybe you should think about breaking up with them?
Who cares he is a loser, I don't need to spend time with him.
If you feel that he is a loser and you don't want to spend time with him, then break up with him. There's clearly no love there and he deserves to know that so that you both may move on and find real love.