Had a fall out with childhood friend and I feel horrible.. but he invited me to his stag now but not the wedding?

We’ve been friends since 10 years old and we’re now 30.

Reasoning is that over the last 4-5 years every hangout session became a roast.. always made fun of you and made it personal. I finally had enough and lashed back.. but I really went personal with him as well (normally avoided this because I knew he can’t handle this due to his big ego)

so that along with him always asking me to buy him things (games, food, collective hockey cards etc.. & promising to pay me back. But then would laugh and say you have enough money you don’t need it. He always found it funny that he owed $200-$300 and that he wouldn’t pay back.

Since direct confrontation wouldn’t work with him.. I decided to distance myself from him thinking it would make him realize how he treats me and maybe would be apologetic and then start treating me with respect.

Now 2 years have gone by since we last hung out. He has reached out to me maybe 6-8 times throughout these 2 years but not to hang out.. only to ask for things (example. Hey can I borrow your gaming controller or could you lend me some money or could you drive me and my cousin somewhere because we want to drink) .. so this to me made me feel he doesn’t care about me despite being super close friends for many years

Now his wedding is a month away and I realized that I’m not invited.. instead he reached out asking me to buy a ticket for his stag.. even if I don’t come he said to at least buy a ticket to supper his family.

despite all this I feel guilty for this fall out and miss the good days and really hate the reality of cutting ties completely. I’m pretty depressed about this.. should I go to his stag or should I just not buy one and let this relationship go?
Had a fall out with childhood friend and I feel horrible.. but he invited me to his stag now but not the wedding?
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