Been in a lot of short term kinda toxic relationships and currently in a wonderful one, with like 8 years being single in between.
The bad relationships sucked all the energy out of me and made me relapse into some bad behaviors. Single was better than that but I wasn't really happy/always lonely. Been living with my fiance for 2 years and I actually get to wake up and sleep happy. Gotta put in work and change your routine but it's 100% worth it.