It started out ok although from the beginning there are a couple of clichés that already made me cringe.
Main Guy character is a classic "nice guy" with stalker behaviour, very frustrating and if pushed can be quite evil even.
Girl has self-esteem issues.
Side characters are side characters, we learnt almost nothing from anyone, it's kept very superficial. I could even say the same for the main characters, the reasons for him to like her are hold by a fine thread until they have more relationship and we're still told absolutely nothing about her, I don't know anything of what she likes or doesn't, what she wants to do or doesn't, she's just pretty.
Writing is mediocre and I feel at points the movie doesn't know what it wants to be or what direction it wants to go, at points it feels like it wants to be a different version of 500 days of Summer, but then it tries to tell me the main characters are meant for each other and there is romance there, even suggested with that ending. Talking about the ending, it's unsatisfactory to the point it leaves me a very bad aftertaste as if everything Guy did was justified and June grew nothing and thought about things 0.01 seconds. There was no growth and no change.

I found some parts a bit funny, but overall not sure I could classify this as romantic comedy, Guy makes this movie go south very early on and I just felt uncomfortable he was so pushy and inactive at the same time.