Help Please, Getting Married in 3 weeks?

I'm getting married to a very sweet, quiet guy who is not into being overtly emotive and rather treats me like a friend and helps me around the house.   His flat affect has been driving me crazy lately maybe bc I'm feeling a lot of wedding stress.   We work opposite shifts and see each about twice a week.   I feel like he doesn't show me much affection or verbally reinforce me, and I know I have a lot of insecurity and over analyze everything to death.   When I rather dramatically confronted him, he says I just need to lighten up and go with the flow and that by putting all this pressure on him to emote it actually makes him less likely to do it.   I tend to catastrophize everything and he feels like I jump on him as soon as I walk through the door and our lack of spending quality time puts a lot of pressure on the little time we have to be fairy tale esque, when all he wants to do is watch TV.   How do I balance my need for affection and approval with his desire to be in the present?   Is this a women thing, or am I super insecure?
I feel like we are trying to deal with them, I'm seeing a counselor to work on my own crap, I know a large part of the relationship issues are my insecurities and lack of self esteem

he won't change after your marriage

if anything

it will get worse

you need to decide if this is something you want for the rest of your married life

peace

engagements are good things, wedding planning stress is a good thing. Now you know you are not ready to get married together. you have no idea what stress is. This is a case where getting married is more important than the long term relationship

This doesn't sound like a marriage made in heaven.  You sound like two totally different people, and usually there's nothing wrong with that, but in your case you are so different, that there is nothing holding you together.  He doesn't show you much affection or say how much he loves you, and he likes to spend a lot of time watching tv. Chances are, he's never done something totally unexpected and spontaneous, like surprising you with some flowers and a nice dinner afterwards.

Otherwise, he has some good qualities. On one hand, he doesn't sound like a partying kind of guy, or a guy you'd have to worry about hanging out with friends at the bar until 2 every night. He helps you around the house and overall he treats you well.  On the other hand, you think he's just too quiet and shows no emotion. You want more excitement and you'd love it if he shows affection in more and interesting ways. But, if he thinks you are putting pressure on him to show some emotion, then he most likely thinks that you are asking him to change his personality.  And I'm not sure that is something that he can do. He can't change who he is.

So now you have to decide, do I really want to be married to this tv watching, quiet, yet sweet guy, who is very unlikely to change?  Because if you have to ask how to handle things now, three weeks before your wedding, then you're not ready to be married to this man.