Does love really exist? .

I'm starting to lose faith in love. To give you context I've been in a somehow short 1yr,6months relationship where binigay ko makakaya ko and I tried to be as healthy as I can, I tried my best to make our relationship healthy. Attracted her gave her enough affection and intimacy. And alam ko din sa sarili ko na mabait akong tao and everyday ko syang cinocomplement "ang ganda mo naman" type things. And one time naging complacent ako since sobrang busy namin in our own personal life. Kaya inintindi ko nalang na if nang hihingi sya ng pahinga di ko muna sya kinukulit, suddenly nanghingi sya ng space and then nakipag break between those space which I find it very confusing that time kasi goods naman kami overall? napag usapan naman namin to try to work things out which she agrees and then one day she confesses na she's been cheating on me with her co worker. It really blew my mind siguro eto na yung patunay na kahit gano ka ka attractive, kayaman, kabait, ka healthy though wala namang perfectong tao pero ang point is kahit gano katama pag trato mo sakanya if she's the type of person then gagawin nya talaga, since I can't stop anyone from cheating naman diba?

So here's the thing. Does love really exist? or it's just a biological way for us to populate? Kasi may nakikita naman akong couple na sila na since highschool and pag tanda. Pero at this time and age it's very easy to fall into temptations lalo na if nakikita mo to 8.5 hrs a day. Like I must say for myself na I don't think I can cheat to someone who I really love kaso thinking na ginawa nya sakin yun despite how good I am to her really leaves me confused and blindsided? Balakayojan mag aampon nalang ako hahahaha