aw help me please ☹️

i met this guy in my work who is a good couple of years older than me and not the slightest bit attractive but for some reason i really like him ?!

we started texting for a bit and i always seen it as friends but then realised that whenever i’m around him i’m always incredibly happy, i get nervous around him and when he texts me i get all excited

i just really like who he is as a person

the only problem is he is very off and on...

one minute he’s flirty and replies quickly the next he doesn’t reply for hours and is quite dry with me ?

can anyone help :( i really don’t know what to do