My husband and I have been married for 2.5 years (together for a total of six years). We've had quite a few rough spots in the past (my husband said he almost divorced me the first year we were married, I almost broke up with him a year into our engagement, etc.). We hit another rough patch recently because I fucked up and I'm having trouble getting through it. A few weeks ago I got drunk and was flirty with a dude my husband knows I am attracted to (obviously shitty on my part). I was out the next day and when I came back my husband had called his parents and told them we were probably getting a divorce and he told me that he "used to love me so much, but just doesn't feel that way anymore". Things have been somewhat better over the past few weeks, but I keep having the feeling of "Holy shit I should just leave and move someplace new". I have wanted to live in another state my entire life and it's something I gave up to be with my husband; whenever we have issues it's one of the first things I think of (it's not something I bring up to my husband because I know I was responsible for the decision to stay with him and live here). I think things will probably work themselves out but I also know neither of us are super happy right now.
On top of that my support system is either on the side of "get a divorce", "you should be totally happy", "you're making decisions based on fear of the unknown." or are people I don't really feel I can talk to about it. My husband and I had one session of marriage counseling a year ago and we both agreed it was a complete waste of time, so I don't really think that would be a route to take.
My general view of relationships is that they can last indefinitely as long as each person is willing to sacrifice enough to make it work. However I get concerned about sacrificing so much just for things to end later on. I know this course of thinking is selfish on my part but I'm just wondering if this is something everyone goes through and makes it out of or if it a sign of something bigger?
I know H/A can't offer solutions, but I'm just looking to crowd-source personal anecdotes.
tl:dr; Do all marriages go through "we might get divorced" phases and come out on the other side?