Help!!!

Im lesbian and have identified as it for about 6 yrs now. Im really fond of my male coworker and enjoy talking with him, today I went on my off day wearing a really cute outfit and saw him and said hi, when he showed no reaction to my outfit it upset me I even waited longer to see if he’d say anything about it. (he never did) I’ve never liked a guy or dated a guy so I’m so confused is this love? I have daddy issues and attachment issues so I’m also wondering if this plays a part? Whenever I get close with a older male I get upset when I can’t see them or be around them like a teacher for example. I’m just really confused with my emotions and need help 🙁