I'm going to constantly leave my spouse at night so that I can have alone time.
Why do this every night?
I need it because it is relaxing.
It's understandable that you need to have some alone time, surely your spouse does to, however, leaving your spouse alone everynight is mean and hurtful. Doing this will lead to resentment from your spouse and problems in your marriage. You should explain to your spouse what you are going through and reinforce your commitment to your marriage.
My spouse has a lot of friends, he doesn't need me.
That's not the same. Couples spending time together is not the same as friends spending time together. Spend some quality time with you spouse.