Heart broken 💔 PLEASE HELP

 Me and my S/O have been been talking about getting our own place and kids and marriage.

Well the other night we were talking. And I told him I was gonna plan our wedding and when if happend it would be ready. I have a bunch of bs wrote down in a notebook. So the other night we were talking about dates we went back and forth and he said March. And I'm like ok he asked the weekends in march I told him blah blah...fast fwd...me being me I looked up him and His ex's junk, there anniversary is march 5th. Am I wrong for being super upset? Like I just wanna leave. 

‼️‼️‼️TMI‼️‼️‼️

And then before all this...he was talking about fucking in the dressing room and we laugh it off well I led him in I was joking and he tried to fuck me and I'm like this ain't gonna work and he's like yes it is Ive done it before and that really hurt my feelings Bc I know he was talking about His ex and now I'm seriously hurt and in need of advice!! What do I do?? I feel like he misses her.