Should I marry my ex-girlfriend?

I dated my ex for 6mos before I made the mistake of breaking up w/her because I had a crazy thought run through my head that I could do better than her. I started reflecting on my life and I realized that although I am a beta male, I am successful enough to attract someone younger than her. Since she is the first person I had sex with aside from a ******* from a hooker & cybersex with many women online, I wanted to experience being with a younger woman since the hooker was an old hag and since my ex is about to hit the wall. But a day later I regretted my decision & started to miss her. I was too stubborn to contact her & apologize but she ended up contacting me one week later BEGGING me to take her back. She said she is madly in love with me. It felt so great to have a woman BEGGING to be with me when I've been rejected by women my whole life. I now realize that I love her and I want to marry her despite her histrionic personality disorder. Also, I know for a fact that she is a loyal woman because she had a colostomy when we first started dating & I thought she was only dating me because no other man wants to date a woman who craps in a bag, but she had her colostomy bag removed last month. She can now crap normally and she STILL wants me even though she is good looking enough to attract an alpha. She is approaching check-out time, so I figure I'd do her the favor of marrying her since she will be over the hill and checked out from the alpha dating world in just 1 or 2yrs.