Years of being single, struggling to get a woman, attempts of flirting with various dates only to get slapped right on the face or get thrown by a sandwich or some of the sort, he was desperate. He thought that the ladies loved him—Johnny Bravo, actually wanting to make his momma proud and prove at least something. He failed miserably because of his behavior.
Until he came along to you, suddenly everything was working out. He may be a himbo but, he's got a soft side behind his narcissistic personality. Throughout his times of impressing you, his pride always deflates whenever you just smile and reassure him, that kindness in you making Johnny flustered. Johnny Bravo does not get flustered! He's a handsome macho man that makes the women fluster!!
He only talked to you for a week back then and he was already giving you small and subtle gifts; a random rose he picked up from the bushes, a beautiful vanity mirror and said you were as pretty like him and deserved to look at him and yourself, and somehow gave you his shirt one time because he 'wanted to flex his desirable muscles' right in front of you.
Only for him to realize his feelings were serious, he didn't talk to any other woman other than you due to the fact you were the only one who stayed with him. He might take this to a serious level. After calling you and 'wanting to hang out privately' with him, you were taken at a lovely diner, a sight of him with a bouquet in hand. "Hey there, pretty momma. I've got ya somethin' as charmin' as me." Winking towards you, masking his own nervousness..