Is Alcohol helpful in my love life or just dangerously close to destroying me?

I don’t have my son for one night so I put some whiskey in my coke from McDonalds because I was lonely?? and the next thing I know I’m thinking about forgetting my exe’s cheating, all the fighting and abuse etc. and considering going to her house and asking her to dance and just holding her and kissing her like nothing ever happened.
On the rare occasion that I drink I forgive everyone for everything.
Is that a good thing or should I just lock myself in my room and watch movies until I sober up?