And now the clarifications.
1. I know that many incels do hate when people are talking that they are entitled so I don't want to accuse them like this... but if you're an incel (or anybody else) and you do think that only "I like her" (or "I love her") is enough she to like him (love him) back it's really something that belongs to one of these (or to some of these, or all of these):
- entitlement mentality (entitlement mindset)
- naivity
- delusions
Maybe you feel/think that it's very romantic to say "I love you!" or to express your feelings in some pretty way. But it's not going to work if she is not into you (i. e. doesn't like you). Never stop to imagine one disgusting woman who likes you and who is being romantic, gentle and so on... and how this is not going to make her even 10% more attractive to you if she doesn't change her body and face somehow and doesn't get some more positive qualities.
2. Some guys think like this "Hey, I am a good runner. I run faster than most of the normies! Why she doesn't like me?!" or "I am such a good gamer/poet/mathematician/etc., why she's not proud to have a boyfriend like me?!"
Well guys, imagine some ugly girl which is an amazing runner or super talanted painter/singer/historian/etc. Is it enough for you to choose her to be your girlfriend if she's not changing (improving) her looks (face and body) and not getting more positive qualities (like not cheating, being clean, able to help you with something, etc.)?
You need to improve your body and to become richer and/or popular, etc. to be able to attract the females. For example, if you're a good runner it's a good beginning but you also may start to improve your clothes, your knowledge, your incomes... just never forget to empower yourself with the right maxxing (gymmaxx, edumaxx, moneymaxx, popularitymaxx, socialmaxx and so on.)
3. If you are able to find out which males are her ideal males (for example John Cena or Brad Pitt)start to resemble them with little steps (first the bodies, then the styles, after that their personalities) and at the same time develop yourself in additional ways. Let's say, that her ideal male (males) doesn't play chess, but you like chess, so you can do your best to be a better chess player. Or if you like something else (which is positive and developing/empowering for you) like fencing or Japanese language, you can learn it well.