Need advice on how to get over someone whom I like very much but am certain that they are not right for me.

I (27M) have kind of developed an infatuation with someone at work and they also have feelings for me. We started texting and talking a lot and somewhere along they i guess we both found out that we like each other and the conversations kind of got romantic . Problem is, that though i have feelings for her and she makes feel happy when i talk to her, she is someone who, for me, has many red flags and does many things i am not comfortable with and which i know she cant change and will inevitably lead to problems down the line and will end up in a failed relationship and a lot of pain. I let her know about this which led to us both of us being upset for sometime but now things are kind of casual between us and we still talk from time to time, although our conversations are much more platonic now.

Through this was not the first time i’ve been in love with someone, this was the first time that i felt love from someone else. Im now worried that ill never be able to love someone else again because shes all that i think about and i don’t wanna try getting into a relationship with someone else while she is still on my mind.

All of this is very new to me and i just cant see an end to this sadness, longing. I know what i did was the right thing for the both of us but, still , it really hurts. What should i do?