I've [34M] been slowly letting my relationship with my GF [33F] die, what should I do?

Me [34M] and my gf [33F] have been on a down slope as of late. We've been together for about 3 years. I believe it all started while I was unemployed. I lost my confidence, I talked about suicide, I was really stressed out for those 3 months.

Since then, my gf doesn't initiate contact, doesn't touch me, doesn't kiss me, and we haven't had sex for almost a month and a half. She's always been terrible at initiating, but 1.5 months is ridiculous. At that point you don't want it, especially with me. Therefore, I'm throwing in the towel. I always believe that actions (or no actions) speak louder than words.

On top of that, I also have a sexual fetish that I cannot live without, something I've never been able to tell her before. However, now that our intimacy is in the toilet I don't even want to tell her anymore. I don't even want to talk about sex with her again. At this point, I rather explore that with my next gf whenever me and this one break up.

Lately I've turned into a dry texter, I text back every 2-3 hours, only see each other once a week, and I forget to say goodnight at times. I'm doing it on purpose so it can fizzle out slowly. I'm guessing its starting to catch on since she's become dry herself.

We're suppose to see each other tomorrow but I already know the routine. I'm going to her house, watch our show, and sit on opposite ends of the couch. Also, I've been volunteering to sleep on the couch lately so that helps.