Is there a downside of being a flexible, optimistic person?

Whenever there’s a problem, whatever the result might be, my mind always think of it in a beneficial way. For example, if I got fired from work I’ll just think that it’s a relieve to finally get out of that place, it means holiday, and give me a strong motivation to try new job. If my relationship ended with my SO it will mean that I’m happy to be the boss of myself again, no more quarelling, and all the freedom to seek and meet new people. If I got arrested that will mean that I’ll get free food and drink, not having to work, and the tough environment might make me have tougher personality. Those are just some of the examples. I do not seek the consequences, I’m just not afraid of them. No matter what happen my mind always look at the brighter side from every situation and can always concoct a way to make it benefits myself.

To be honest, I have forgotten how it feels like to regret something and with my flexibility to cope with every situation I don’t think I will feel down for every outcome of a situation. Even when faced with the idea of death I’ll think that at least there’s no more suffering. I think they are all good quality that I possess and I wonder if having this quality is actually making me a person that won’t regret anything (my mind even think it’s not a bad idea).

What do you think? Did I complain about these qualities? Or is there something to concern about for having this kind of personality?